Latias (Shadow): Master League IV Guide

How far your IVs can slip before this Master League attacker gives up specific matchups, using its standard Master League moveset. Breakpoints, bulkpoints, CMP, and named matchups across the full best-buddy grid, over all 9 ordered shields, your-opp (0-0 .. 2-2).

Format credit: the structure, terminology, and presentation of this guide are adapted from XehrFelrose's Master League IV deep dives. In particular the "Terms to know" vocabulary (including the "Premium" vs "Thrifty" IV framing), and the per-stat by best-buddy by shield breakdown, follow XehrFelrose's work. The numbers here are independently re-simulated with this project's own engine, not taken from the video.

What this covers

Terms to know

Breakpoint
An attack-stat threshold where your fast move deals 1 more damage to a specific opponent. Most impactful on fast moves that fire every turn.
Bulkpoint
A defense-stat threshold where a specific opponent's fast move deals 1 less damage to you.
CMP (charge-move priority)
When both Pokemon throw a charged move on the same turn, the one with the higher attack stat goes first. "CMP lost" means a lower attack IV drops you below an opponent's attack, so you would lose that simultaneous-throw.
Shields (you-opp)
Shield scenarios are written you-opp (your shields first). This guide covers all 9 ordered scenarios (0-0, 0-1, 0-2, 1-0, 1-1, 1-2, 2-0, 2-1, 2-2), so "you 2 / opp 1" (2-1) is distinct from "you 1 / opp 2" (1-2). Even energy, standard movesets.
BB (best buddy)
Best-buddy boost adds one level (L50 to L51). In Master League there is no CP cap, so that level fully applies.
Premium vs Thrifty IVs
Terminology from XehrFelrose (video). Defined here mechanically, not as a gameplay call: a Premium spread drops no matchups versus a perfect (hundo) IV spread in the stated case; a Thrifty spread drops only the matchups listed next to it. Whether those matchups matter is your call.

These terms and the breakdown that follows are adapted from XehrFelrose's Master League IV deep dives.

The build

This guide assumes Latias (Shadow) with its standard Master League moveset. Base stats atk 228 / def 246 / hp 190.

Check my IVs

Paste one or more candidate spreads as atk/def/hp (for example 15/15/14, 15/14/15), and this builds a PvPoke-style matchups table showing only the matchups where those spreads differ. Spreads that agree everywhere are hidden, so the table stays scannable. This guide covers IVs 15 down to 12; the richest close-call detail is on spreads that drop a single stat. Enter two or more spreads and you also get a leftover-HP margin view (how much more convincingly each wins) and a ✦ marker for matchups that flip when you toggle your own best-buddy (L50 ↔ L51) in the selected Case.

Versus the Master League meta

Win/loss at a perfect IV on the 3 even shields (0-0, 1-1, 2-2), in the best buddy, vs a best-buddy meta case (you L51 vs opponents L51), vs the 61-strong Master top-60. The full per-shield picture is in the stat tables below.

Shield-dependent (split on even shields): Palkia (Origin), Kyurem (White), Reshiram, Dialga (Origin), Kyurem (Black), Kyogre, Zekrom, Marshadow, Palkia (Shadow), Metagross (Shadow), Garchomp (Shadow), Palkia, Kyogre (Shadow), Groudon, Gholdengo, Mewtwo (Shadow), Dialga (Shadow), Dialga, Hydreigon (Shadow), Jirachi, Dragonite (Shadow), Goodra, Tyranitar (Shadow), Gyarados, Groudon (Shadow), Ho-Oh (Shadow), Reshiram (Shadow).

What best buddy changes (at a perfect IV)

Matchups best buddy (L51) gains over not best-buddying (L50), holding the meta's best-buddy status fixed. Even shields, perfect IV.

Vs a non-best-buddy meta

Gains: Dialga (Shadow) 0-0, Kyogre 0-0, Kyurem (Black) 2-2, Latias (Shadow) 0-0, Latias (Shadow) 1-1, Latias (Shadow) 2-2, Latias 0-0, Latias 1-1, Latias 2-2, Latios (Shadow) 1-1, Necrozma (Dawn Wings) 2-0, Sylveon 1-0

Vs a best-buddy meta

Gains: Dialga (Shadow) 0-0, Dialga 2-2, Ho-Oh 0-0, Kyurem (Black) 2-2, Reshiram (Shadow) 0-0, Reshiram 2-2, Zacian (Crowned Sword) 1-0, Zekrom 2-2

Attack IVs

Attack at a perfect IV: 246.5 at L51 (best buddy), 245.0 at L50. Each row drops only that one stat (the other two stay 15); matchups shown are those given up versus a perfect IV.

No best buddy, vs a non-best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14244.0Latias (Shadow)Latias (Shadow)
13243.0Reshiram, Zekrom, Latias (Shadow), DialgaLatias (Shadow), Dialga
12242.0Reshiram, Zekrom, Latias (Shadow), DialgaLatias (Shadow), Dialga
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Atk:
  • Latias (Shadow) 2-1 near-death win: still wins but barely survives, 15 HP left of 172 -- a perfect 15/15/15 keeps 33
13 Atk:
  • Latias (Shadow) 2-1 near-death win: still wins but barely survives, 15 HP left of 172 -- a perfect 15/15/15 keeps 33
12 Atk:
  • Latias (Shadow) 2-1 near-death win: still wins but barely survives, 15 HP left of 172 -- a perfect 15/15/15 keeps 33

No best buddy, vs a best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14244.0-Dialga
13243.0-Dialga
12242.0-Gyarados (Shadow), Dialga
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Atk:
  • Dialga 1-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-1 near-death win: still wins but barely survives, 10 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Metagross 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Necrozma (Dusk Mane) 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Tapu Lele 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
13 Atk:
  • Dialga 1-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-1 near-death win: still wins but barely survives, 10 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Metagross 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Necrozma (Dusk Mane) 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Tapu Lele 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
12 Atk:
  • Dialga 1-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-1 near-death win: still wins but barely survives, 10 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Metagross 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Necrozma (Dusk Mane) 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Tapu Lele 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

Best buddy, vs a non-best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14245.5Eternatus--
13244.5Eternatus, Necrozma (Dawn Wings), Necrozma (Dusk Mane), Latias (Shadow)-
12243.4Reshiram, Zekrom, Eternatus, Necrozma (Dawn Wings), Necrozma (Dusk Mane), Latias (Shadow), DialgaLatias (Shadow), Dialga

Best buddy, vs a best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14245.5Latias (Shadow)Latias (Shadow)
0-0 Ho-Oh
13244.5Reshiram, Zekrom, Latias (Shadow), DialgaLatias (Shadow), Dialga
12243.4Reshiram, Zekrom, Latias (Shadow), DialgaLatias (Shadow), Dialga
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Atk:
  • Latias (Shadow) 2-1 near-death win: still wins but barely survives, 16 HP left of 173 -- a perfect 15/15/15 keeps 34
13 Atk:
  • Dialga 1-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Latias (Shadow) 2-1 near-death win: still wins but barely survives, 16 HP left of 173 -- a perfect 15/15/15 keeps 34
  • Metagross 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Tapu Lele 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
12 Atk:
  • Dialga 1-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Dialga 2-0 energy banked: still wins but banks 40 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 40)
  • Latias (Shadow) 2-1 near-death win: still wins but barely survives, 16 HP left of 173 -- a perfect 15/15/15 keeps 34
  • Metagross 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross (Shadow) 2-2 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 1 left, was 2)
  • Tapu Lele 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

Defense IVs

Defense at a perfect IV: 183.9 at L51 (best buddy), 182.8 at L50. Each row drops only that one stat (the other two stay 15); matchups shown are those given up versus a perfect IV.

No best buddy, vs a non-best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14182.1Reshiram, Zekrom, Dialga (Shadow), Dialga, Reshiram (Shadow)
13181.4Reshiram, Zekrom, Lugia, Dialga (Shadow), Dialga, Reshiram (Shadow)
12180.7Reshiram, Zekrom, Lugia, Dialga (Shadow), Dialga, Reshiram (Shadow)
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 45
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 24 HP left of 172 -- a perfect 15/15/15 keeps 45
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 40
13 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 45
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 24 HP left of 172 -- a perfect 15/15/15 keeps 45
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 40
12 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 45
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 24 HP left of 172 -- a perfect 15/15/15 keeps 45
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 18 HP left of 172 -- a perfect 15/15/15 keeps 40
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

No best buddy, vs a best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14182.1-
13181.4Kyurem (Black)
12180.7Kyurem (Black)
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Def:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
13 Def:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
12 Def:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

Best buddy, vs a non-best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14183.1Kyogre, Necrozma (Dawn Wings), Latias (Shadow)
13182.4Reshiram, Kyogre, Zekrom, Necrozma (Dawn Wings), Latias (Shadow), Dialga (Shadow), Dialga, Sylveon, Reshiram (Shadow)
12181.7Reshiram, Kyogre, Zekrom, Lugia, Necrozma (Dawn Wings), Latias (Shadow), Dialga (Shadow), Dialga, Sylveon, Reshiram (Shadow)
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Def:
  • Latias (Shadow) 2-2 near-death win: still wins but barely survives, 3 HP left of 173 -- a perfect 15/15/15 keeps 31
13 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Latias (Shadow) 2-2 near-death win: still wins but barely survives, 3 HP left of 173 -- a perfect 15/15/15 keeps 31
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 25 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
12 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Latias (Shadow) 2-2 near-death win: still wins but barely survives, 3 HP left of 173 -- a perfect 15/15/15 keeps 31
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 25 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41

Best buddy, vs a best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14183.1Reshiram, Zekrom, Dialga (Shadow), Dialga, Reshiram (Shadow)
13182.4Reshiram, Zekrom, Lugia, Dialga (Shadow), Dialga, Reshiram (Shadow)
12181.7Reshiram, Zekrom, Lugia, Dialga (Shadow), Dialga, Reshiram (Shadow)
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Reshiram 2-1 near-death win: still wins but barely survives, 23 HP left of 173 -- a perfect 15/15/15 keeps 48
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 25 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Zekrom 2-1 near-death win: still wins but barely survives, 23 HP left of 173 -- a perfect 15/15/15 keeps 48
13 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Reshiram 2-1 near-death win: still wins but barely survives, 23 HP left of 173 -- a perfect 15/15/15 keeps 48
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 25 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Zekrom 2-1 near-death win: still wins but barely survives, 23 HP left of 173 -- a perfect 15/15/15 keeps 48
12 Def:
  • Dialga (Shadow) 1-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Reshiram 2-1 near-death win: still wins but barely survives, 23 HP left of 173 -- a perfect 15/15/15 keeps 48
  • Reshiram (Shadow) 1-1 near-death win: still wins but barely survives, 25 HP left of 173 -- a perfect 15/15/15 keeps 46
  • Reshiram (Shadow) 2-1 near-death win: still wins but barely survives, 19 HP left of 173 -- a perfect 15/15/15 keeps 41
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Zekrom 2-1 near-death win: still wins but barely survives, 23 HP left of 173 -- a perfect 15/15/15 keeps 48

HP IVs

HP at a perfect IV: 173 at L51 (best buddy), 172 at L50. Each row drops only that one stat (the other two stay 15); matchups shown are those given up versus a perfect IV.

No best buddy, vs a non-best-buddy meta

HPHPMatchups dropped (you-opp)
14171
13170
12169
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
13 HP:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
12 HP:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

No best buddy, vs a best-buddy meta

HPHPMatchups dropped (you-opp)
14171
13170
12169
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 HP:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
13 HP:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
12 HP:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Solgaleo 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

Best buddy, vs a non-best-buddy meta

HPHPMatchups dropped (you-opp)
14172
13171
12170
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 HP:
  • Metagross (Shadow) 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross (Shadow) 2-2 shield spent: keeps the win, but has to spend 2 more shields than a perfect 15/15/15 (now 0 left, was 2)
  • Necrozma (Dusk Mane) 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 1 left, was 2)
  • Necrozma (Dusk Mane) 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
13 HP:
  • Metagross (Shadow) 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross (Shadow) 2-2 shield spent: keeps the win, but has to spend 2 more shields than a perfect 15/15/15 (now 0 left, was 2)
  • Necrozma (Dawn Wings) 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
12 HP:
  • Palkia (Origin) 1-1 near-death win: still wins but barely survives, 6 HP left of 170 -- a perfect 15/15/15 keeps 46
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

Best buddy, vs a best-buddy meta

HPHPMatchups dropped (you-opp)
14172
13171
12170
Close calls (still a win, but the post-match margin shifts enough to matter: a shield spent, a near-death survival, or roughly one fewer charged move of energy banked)
14 HP:
  • Metagross (Shadow) 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross (Shadow) 2-2 shield spent: keeps the win, but has to spend 2 more shields than a perfect 15/15/15 (now 0 left, was 2)
  • Necrozma (Dusk Mane) 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
13 HP:
  • Metagross (Shadow) 2-1 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross (Shadow) 2-2 shield spent: keeps the win, but has to spend 2 more shields than a perfect 15/15/15 (now 0 left, was 2)
12 HP:
  • Solgaleo 2-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)

Every spread with all three IVs from 12 to 15 (the practical range above the 10/10/10 legendary catch floor), sorted so the spreads that drop nothing come first. "Premium" drops no matchups versus a perfect IV in the stated case; everything else lists exactly what it gives up. The first two tables compare against a best-buddied meta (the realistic, harder case); the last two against a non-best-buddied meta, which is strictly easier.

If you best buddy (L51), vs a best-buddy meta

CP and stats at L51; drops measured in the best-buddy vs best-buddy case.

CPIVs (A/D/HP)IV %AtkDefHPDrops vs a perfect IV
401615/15/15100.00%246.5183.9173drops nothing (Premium)
399914/15/1599.59%245.5183.9173
0-0 Ho-Oh
400615/15/1499.42%246.5183.9172
398914/15/1499.01%245.5183.9172
399615/15/1398.84%246.5183.9171
400815/14/1599.62%246.5183.1173
400015/13/1599.23%246.5182.4173
398313/15/1599.18%244.5183.9173
1-1 Dialga
398014/15/1398.44%245.5183.9171
399214/14/1599.21%245.5183.1173
399315/12/1598.85%246.5181.7173
398414/13/1598.83%245.5182.4173
396612/15/1598.77%243.4183.9173
1-1 Dialga
397313/15/1498.60%244.5183.9172
398615/15/1298.27%246.5183.9170
399815/14/1499.04%246.5183.1172
399115/13/1498.66%246.5182.4172
397614/12/1598.44%245.5181.7173
397014/15/1297.86%245.5183.9170
398214/14/1498.63%245.5183.1172
398315/12/1498.28%246.5181.7172
397414/13/1498.25%245.5182.4172
395712/15/1498.19%243.4183.9172
396313/15/1398.03%244.5183.9171
397513/14/1598.80%244.5183.1173
398815/14/1398.47%246.5183.1171
396713/13/1598.42%244.5182.4173
398115/13/1398.09%246.5182.4171
396614/12/1497.87%245.5181.7172
397315/12/1397.71%246.5181.7171
395912/14/1598.39%243.4183.1173
397214/14/1398.06%245.5183.1171
396013/12/1598.04%244.5181.7173
395112/13/1598.01%243.4182.4173
397915/14/1297.89%246.5183.1170
396414/13/1397.68%245.5182.4171
394712/15/1397.62%243.4183.9171
397115/13/1297.51%246.5182.4170
395313/15/1297.46%244.5183.9170
395714/12/1397.31%245.5181.7171
396315/12/1297.14%246.5181.7170
396513/14/1498.23%244.5183.1172
395813/13/1497.85%244.5182.4172
394312/12/1597.63%243.4181.7173
396214/14/1297.49%245.5183.1170
395514/13/1297.11%245.5182.4170
393712/15/1297.05%243.4183.9170
394714/12/1296.74%245.5181.7170
395013/12/1497.47%244.5181.7172
394912/14/1497.82%243.4183.1172
395613/14/1397.65%244.5183.1171
394112/13/1497.44%243.4182.4172
394813/13/1397.28%244.5182.4171
394013/12/1396.90%244.5181.7171
394613/14/1297.08%244.5183.1170
393412/12/1497.07%243.4181.7172
393813/13/1296.71%244.5182.4170
393113/12/1296.34%244.5181.7170
393912/14/1397.25%243.4183.1171
393212/13/1396.88%243.4182.4171
393012/14/1296.68%243.4183.1170
392412/12/1396.50%243.4181.7171
392212/13/1296.31%243.4182.4170
391412/12/1295.94%243.4181.7170

If you do not best buddy (L50), vs a best-buddy meta

CP and stats at L50; drops measured in the no-best-buddy vs best-buddy case.

CPIVs (A/D/HP)IV %AtkDefHPDrops vs a perfect IV
396815/15/15100.00%245.0182.8172drops nothing (Premium)
396115/14/1599.62%245.0182.1172
395315/13/1599.23%245.0181.4172
394615/12/1598.85%245.0180.7172
395915/15/1499.42%245.0182.8171
395115/14/1499.04%245.0182.1171
394415/13/1498.66%245.0181.4171
393615/12/1498.28%245.0180.7171
394915/15/1398.84%245.0182.8170
394115/14/1398.46%245.0182.1170
393915/15/1298.26%245.0182.8169
393415/13/1398.08%245.0181.4170
393215/14/1297.88%245.0182.1169
392615/12/1397.70%245.0180.7170
395214/15/1599.59%244.0182.8172
1-1 Dialga
392415/13/1297.50%245.0181.4169
391715/12/1297.13%245.0180.7169
394514/14/1599.21%244.0182.1172
1-1 Dialga
393714/13/1598.83%244.0181.4172
1-1 Dialga
392914/12/1598.44%244.0180.7172
1-1 Dialga
393613/15/1599.18%243.0182.8172
394214/15/1499.01%244.0182.8171
391912/15/1598.77%242.0182.8172
393514/14/1498.63%244.0182.1171
392714/13/1498.25%244.0181.4171
392014/12/1497.87%244.0180.7171
392813/14/1598.80%243.0182.1172
393314/15/1398.43%244.0182.8170
392113/13/1598.42%243.0181.4172
391212/14/1598.39%242.0182.1172
392514/14/1398.05%244.0182.1170
391313/12/1598.04%243.0180.7172
390412/13/1598.01%242.0181.4172
392314/15/1297.85%244.0182.8169
391814/13/1397.68%244.0181.4170
389712/12/1597.63%242.0180.7172
391614/14/1297.48%244.0182.1169
391014/12/1397.30%244.0180.7170
392613/15/1498.60%243.0182.8171
391913/14/1498.22%243.0182.1171
391012/15/1498.19%242.0182.8171
391113/13/1497.84%243.0181.4171
390212/14/1497.82%242.0182.1171
389512/13/1497.44%242.0181.4171
390814/13/1297.10%244.0181.4169
390014/12/1296.73%244.0180.7169
391713/15/1398.02%243.0182.8170
390913/14/1397.65%243.0182.1170
390012/15/1397.62%242.0182.8170
390413/12/1497.47%243.0180.7171
390713/15/1297.45%243.0182.8169
390113/13/1397.27%243.0181.4170
389312/14/1397.24%242.0182.1170
389913/14/1297.07%243.0182.1169
388712/12/1497.06%242.0180.7171
389112/15/1297.04%242.0182.8169
389413/12/1396.90%243.0180.7170
388512/13/1396.87%242.0181.4170
388312/14/1296.67%242.0182.1169
387812/12/1396.49%242.0180.7170
389213/13/1296.70%243.0181.4169
388413/12/1296.33%243.0180.7169
387612/13/1296.30%242.0181.4169
386812/12/1295.93%242.0180.7169

If you best buddy (L51), vs a non-best-buddy meta

CP and stats at L51; drops measured in the best-buddy vs no-best-buddy-meta case.

CPIVs (A/D/HP)IV %AtkDefHPDrops vs a perfect IV
401615/15/15100.00%246.5183.9173drops nothing (Premium)
399914/15/1599.59%245.5183.9173drops nothing (Premium)
400615/15/1499.42%246.5183.9172
398914/15/1499.01%245.5183.9172
400815/14/1599.62%246.5183.1173
399214/14/1599.21%245.5183.1173
399615/15/1398.84%246.5183.9171
398014/15/1398.44%245.5183.9171
398313/15/1599.18%244.5183.9173
0-0 Latias
2-2 Latias
399815/14/1499.04%246.5183.1172
398214/14/1498.63%245.5183.1172
397313/15/1498.60%244.5183.9172
0-0 Latias
398815/14/1398.47%246.5183.1171
398615/15/1298.27%246.5183.9170
397014/15/1297.86%245.5183.9170
400015/13/1599.23%246.5182.4173
397214/14/1398.06%245.5183.1171
399315/12/1598.85%246.5181.7173
398414/13/1598.83%245.5182.4173
396612/15/1598.77%243.4183.9173
396313/15/1398.03%244.5183.9171
397915/14/1297.89%246.5183.1170
397513/14/1598.80%244.5183.1173
399115/13/1498.66%246.5182.4172
397614/12/1598.44%245.5181.7173
395712/15/1498.19%243.4183.9172
395912/14/1598.39%243.4183.1173
398315/12/1498.28%246.5181.7172
397414/13/1498.25%245.5182.4172
398115/13/1398.09%246.5182.4171
396214/14/1297.49%245.5183.1170
396513/14/1498.23%244.5183.1172
396614/12/1497.87%245.5181.7172
397315/12/1397.71%246.5181.7171
395313/15/1297.46%244.5183.9170
394912/14/1497.82%243.4183.1172
396414/13/1397.68%245.5182.4171
394712/15/1397.62%243.4183.9171
395613/14/1397.65%244.5183.1171
397115/13/1297.51%246.5182.4170
395714/12/1397.31%245.5181.7171
396315/12/1297.14%246.5181.7170
393912/14/1397.25%243.4183.1171
396713/13/1598.42%244.5182.4173
396013/12/1598.04%244.5181.7173
395514/13/1297.11%245.5182.4170
394613/14/1297.08%244.5183.1170
393712/15/1297.05%243.4183.9170
394714/12/1296.74%245.5181.7170
395112/13/1598.01%243.4182.4173
395813/13/1497.85%244.5182.4172
394312/12/1597.63%243.4181.7173
393012/14/1296.68%243.4183.1170
395013/12/1497.47%244.5181.7172
394112/13/1497.44%243.4182.4172
394813/13/1397.28%244.5182.4171
393412/12/1497.07%243.4181.7172
394013/12/1396.90%244.5181.7171
393212/13/1396.88%243.4182.4171
393813/13/1296.71%244.5182.4170
392412/12/1396.50%243.4181.7171
393113/12/1296.34%244.5181.7170
392212/13/1296.31%243.4182.4170
391412/12/1295.94%243.4181.7170

If you do not best buddy (L50), vs a non-best-buddy meta

CP and stats at L50; drops measured in the no-best-buddy vs no-best-buddy-meta case.

CPIVs (A/D/HP)IV %AtkDefHPDrops vs a perfect IV
396815/15/15100.00%245.0182.8172drops nothing (Premium)
395214/15/1599.59%244.0182.8172
395915/15/1499.42%245.0182.8171
393613/15/1599.18%243.0182.8172
391912/15/1598.77%242.0182.8172
394214/15/1499.01%244.0182.8171
394915/15/1398.84%245.0182.8170
393915/15/1298.26%245.0182.8169
396115/14/1599.62%245.0182.1172
395315/13/1599.23%245.0181.4172
392613/15/1498.60%243.0182.8171
391012/15/1498.19%242.0182.8171
394615/12/1598.85%245.0180.7172
393314/15/1398.43%244.0182.8170
392314/15/1297.85%244.0182.8169
394514/14/1599.21%244.0182.1172
395115/14/1499.04%245.0182.1171
393714/13/1598.83%244.0181.4172
394415/13/1498.66%245.0181.4171
393615/12/1498.28%245.0180.7171
391713/15/1398.02%243.0182.8170
390012/15/1397.62%242.0182.8170
390713/15/1297.45%243.0182.8169
389112/15/1297.04%242.0182.8169
392813/14/1598.80%243.0182.1172
394115/14/1398.46%245.0182.1170
392914/12/1598.44%244.0180.7172
392113/13/1598.42%243.0181.4172
391212/14/1598.39%242.0182.1172
393415/13/1398.08%245.0181.4170
390412/13/1598.01%242.0181.4172
393215/14/1297.88%245.0182.1169
392615/12/1397.70%245.0180.7170
392415/13/1297.50%245.0181.4169
391715/12/1297.13%245.0180.7169
393514/14/1498.63%244.0182.1171
392714/13/1498.25%244.0181.4171
391313/12/1598.04%243.0180.7172
392014/12/1497.87%244.0180.7171
389712/12/1597.63%242.0180.7172
391913/14/1498.22%243.0182.1171
392514/14/1398.05%244.0182.1170
391113/13/1497.84%243.0181.4171
390212/14/1497.82%242.0182.1171
391814/13/1397.68%244.0181.4170
391614/14/1297.48%244.0182.1169
390413/12/1497.47%243.0180.7171
389512/13/1497.44%242.0181.4171
391014/12/1397.30%244.0180.7170
390814/13/1297.10%244.0181.4169
388712/12/1497.06%242.0180.7171
390014/12/1296.73%244.0180.7169
390913/14/1397.65%243.0182.1170
390113/13/1397.27%243.0181.4170
389312/14/1397.24%242.0182.1170
389913/14/1297.07%243.0182.1169
389413/12/1396.90%243.0180.7170
388512/13/1396.87%242.0181.4170
389213/13/1296.70%243.0181.4169
388312/14/1296.67%242.0182.1169
387812/12/1396.49%242.0180.7170
388413/12/1296.33%243.0180.7169
387612/13/1296.30%242.0181.4169
386812/12/1295.93%242.0180.7169

Method and caveats

Format adapted from XehrFelrose's Master League IV deep dives; numbers independently simulated. Generated by scripts/iv_envelope_analysis.py + scripts/render_iv_envelope_article.py.
Battle engine is a Python port of PvPoke; all game data from PvPoke by Empoleon_Dynamite (MIT license). This project would not exist without it.