Mewtwo (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 Mewtwo (Shadow) with its standard Master League moveset. Base stats atk 300 / def 182 / hp 214.

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): Zacian (Crowned Sword), Metagross, Kyurem (White), Lunala, Xerneas, Reshiram, Zamazenta (Crowned Shield), Kyurem (Black), Kyogre, Zekrom, Marshadow, Palkia (Shadow), Metagross (Shadow), Necrozma (Dawn Wings), Garchomp (Shadow), Garchomp, Ho-Oh, Palkia, Latios, Latios (Shadow), Kyogre (Shadow), Necrozma (Dusk Mane), Gyarados (Shadow), Groudon, Florges, Solgaleo, Melmetal, Latias (Shadow), Dialga (Shadow), Kyurem, Tapu Lele, Goodra, Sylveon, Landorus (Therian), 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 2-2, Mewtwo (Shadow) 0-0, Mewtwo (Shadow) 1-1, Mewtwo (Shadow) 2-2, Mewtwo 0-0, Mewtwo 1-1, Mewtwo 2-2, Palkia 0-0, Reshiram (Shadow) 0-0

Vs a best-buddy meta

Gains: Gyarados 0-0, Gyarados 1-1, Reshiram 1-1, Zamazenta (Crowned Shield) 0-0, Zekrom 1-1

Attack IVs

Attack at a perfect IV: 319.5 at L51 (best buddy), 317.6 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)
14316.6Mewtwo (Shadow)-
13315.6Mewtwo (Shadow)Gyarados (Shadow)
12314.6Mewtwo (Shadow)Gyarados (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 Atk:
  • Gyarados 1-1 near-death win: still wins but barely survives, 13 HP left of 192 -- a perfect 15/15/15 keeps 65
  • Necrozma (Dusk Mane) 1-0 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 1 left, was 2)
13 Atk:
  • Gyarados 1-1 near-death win: still wins but barely survives, 13 HP left of 192 -- a perfect 15/15/15 keeps 65
  • Necrozma (Dusk Mane) 1-0 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 1 left, was 2)
12 Atk:
  • Gyarados 1-1 near-death win: still wins but barely survives, 13 HP left of 192 -- a perfect 15/15/15 keeps 65
  • Necrozma (Dusk Mane) 1-0 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 1 left, was 2)

No best buddy, vs a best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14316.6---
13315.6--
12314.6-Eternatus, Keldeo (Resolute), Keldeo (Ordinary), Landorus (Therian)
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:
  • Kyogre (Shadow) 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Kyogre (Shadow) 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)
13 Atk:
  • Groudon 2-1 energy banked: still wins but banks 45 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 45)
  • Kyogre 2-1 energy banked: still wins but banks 45 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 45)
  • Kyogre (Shadow) 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Kyogre (Shadow) 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)
  • Metagross 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross 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)
12 Atk:
  • Groudon 2-1 energy banked: still wins but banks 45 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 45)
  • Kyogre 2-1 energy banked: still wins but banks 45 less energy than a perfect 15/15/15, about one fewer charged move (now 0, was 45)
  • Kyogre (Shadow) 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Kyogre (Shadow) 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)
  • Metagross 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Metagross 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)

Best buddy, vs a non-best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14318.5--
0-0 Palkia
13317.5Mewtwo (Shadow)-
12316.5Mewtwo (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 Atk:
  • Palkia 1-0 near-death win: still wins but barely survives, 25 HP left of 193 -- a perfect 15/15/15 keeps 102
  • Palkia 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:
  • Gyarados 1-1 near-death win: still wins but barely survives, 14 HP left of 193 -- a perfect 15/15/15 keeps 66
  • Palkia 1-0 near-death win: still wins but barely survives, 25 HP left of 193 -- a perfect 15/15/15 keeps 102
  • Palkia 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)
  • Reshiram (Shadow) 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Reshiram (Shadow) 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)
12 Atk:
  • Gyarados 1-1 near-death win: still wins but barely survives, 14 HP left of 193 -- a perfect 15/15/15 keeps 66
  • Necrozma (Dusk Mane) 1-0 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 1 left, was 2)
  • Palkia 1-0 near-death win: still wins but barely survives, 25 HP left of 193 -- a perfect 15/15/15 keeps 102
  • Palkia 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)
  • Reshiram (Shadow) 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Reshiram (Shadow) 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)

Best buddy, vs a best-buddy meta

AtkAttackCMP lostBreakpoint lostMatchups dropped (you-opp)
14318.5Mewtwo (Shadow)--
13317.5Mewtwo (Shadow)Gyarados (Shadow)
12316.5Mewtwo (Shadow)Gyarados (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)
13 Atk:
  • Reshiram 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)
  • Zekrom 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 Atk:
  • Kyogre (Shadow) 1-0 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Kyogre (Shadow) 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)
  • Reshiram 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)
  • Zekrom 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)

Defense IVs

Defense at a perfect IV: 138.8 at L51 (best buddy), 137.9 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)
14137.2Gyarados, Ho-Oh (Shadow)
13136.5Kyurem (Black), Kyogre, Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Gyarados, Ho-Oh (Shadow), Reshiram (Shadow)
12135.8Kyurem (Black), Kyogre, Lugia (Shadow), Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Gyarados, Ho-Oh (Shadow), 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)
13 Def:
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 1 HP left of 192 -- a perfect 15/15/15 keeps 35
12 Def:
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 1 HP left of 192 -- a perfect 15/15/15 keeps 35

No best buddy, vs a best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14137.2Kyurem (Black), Kyogre, Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Reshiram (Shadow)
13136.5Kyurem (Black), Kyogre, Lugia (Shadow), Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Reshiram (Shadow)
12135.8Kyurem (Black), Kyogre, Marshadow, Lugia (Shadow), Garchomp, Kyogre (Shadow), Solgaleo, Dialga (Shadow), Primarina, Tapu Lele, 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) 2-1 near-death win: still wins but barely survives, 23 HP left of 192 -- a perfect 15/15/15 keeps 51
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 1 HP left of 192 -- a perfect 15/15/15 keeps 35
13 Def:
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 23 HP left of 192 -- a perfect 15/15/15 keeps 51
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 1 HP left of 192 -- a perfect 15/15/15 keeps 35
12 Def:
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 23 HP left of 192 -- a perfect 15/15/15 keeps 51
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 1 HP left of 192 -- a perfect 15/15/15 keeps 35

Best buddy, vs a non-best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14138.1Ho-Oh-
13137.4Ho-Oh, Gyarados, Ho-Oh (Shadow)
12136.7Kyurem (Black), Kyogre, Ho-Oh, Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Gyarados, Ho-Oh (Shadow), 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)
12 Def:
  • Kyogre 2-2 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 2 HP left of 193 -- a perfect 15/15/15 keeps 36

Best buddy, vs a best-buddy meta

DefDefenseBulkpoint lostMatchups dropped (you-opp)
14138.1Gyarados, Ho-Oh (Shadow)
13137.4Kyurem (Black), Kyogre, Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Gyarados, Ho-Oh (Shadow), Reshiram (Shadow)
12136.7Kyurem (Black), Kyogre, Lugia (Shadow), Kyogre (Shadow), Dialga (Shadow), Primarina, Tapu Lele, Gyarados, Ho-Oh (Shadow), 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)
13 Def:
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 24 HP left of 193 -- a perfect 15/15/15 keeps 52
  • Kyogre 2-2 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 2 HP left of 193 -- a perfect 15/15/15 keeps 36
12 Def:
  • Dialga (Shadow) 2-1 near-death win: still wins but barely survives, 24 HP left of 193 -- a perfect 15/15/15 keeps 52
  • Kyogre 2-2 shield spent: keeps the win, but has to spend 1 more shield than a perfect 15/15/15 (now 0 left, was 1)
  • Reshiram (Shadow) 2-2 near-death win: still wins but barely survives, 2 HP left of 193 -- a perfect 15/15/15 keeps 36

HP IVs

HP at a perfect IV: 193 at L51 (best buddy), 192 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)
14191
13190
12189
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:
  • Zamazenta (Crowned Shield) 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)
14191
13190
12189
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:
  • Zamazenta (Crowned Shield) 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)
14192-
13191
12191

Best buddy, vs a best-buddy meta

HPHPMatchups dropped (you-opp)
14192-
13191
12191

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
478015/15/15100.00%319.5138.8193drops nothing (Premium)
476514/15/1599.68%318.5138.8193drops nothing (Premium)
477015/15/1499.48%319.5138.8192drops nothing (Premium)
475514/15/1499.17%318.5138.8192drops nothing (Premium)
476815/14/1599.49%319.5138.1193
475013/15/1599.37%317.5138.8193
475314/14/1599.18%318.5138.1193
473512/15/1599.05%316.5138.8193
475915/15/1398.96%319.5138.8191
474915/15/1298.96%319.5138.8191
473913/15/1498.85%317.5138.8192
474414/15/1398.65%318.5138.8191
473414/15/1298.65%318.5138.8191
472412/15/1498.53%316.5138.8192
475815/14/1498.98%319.5138.1192
474214/14/1498.66%318.5138.1192
475615/13/1598.98%319.5137.4193
473813/14/1598.86%317.5138.1193
474114/13/1598.67%318.5137.4193
472312/14/1598.54%316.5138.1193
474715/14/1398.46%319.5138.1191
473715/14/1298.46%319.5138.1191
472913/15/1398.34%317.5138.8191
471913/15/1298.34%317.5138.8191
473214/14/1398.15%318.5138.1191
472214/14/1298.15%318.5138.1191
471412/15/1398.02%316.5138.8191
470312/15/1298.02%316.5138.8191
474415/12/1598.48%319.5136.7193
472713/14/1498.35%317.5138.1192
472914/12/1598.16%318.5136.7193
471212/14/1498.03%316.5138.1192
474515/13/1498.47%319.5137.4192
472613/13/1598.36%317.5137.4193
473014/13/1498.16%318.5137.4192
471012/13/1598.04%316.5137.4193
473315/12/1497.97%319.5136.7192
471713/14/1397.84%317.5138.1191
470713/14/1297.84%317.5138.1191
471814/12/1497.66%318.5136.7192
470212/14/1397.52%316.5138.1191
469212/14/1297.52%316.5138.1191
471313/12/1597.85%317.5136.7193
469812/12/1597.54%316.5136.7193
473515/13/1397.96%319.5137.4191
472515/13/1297.96%319.5137.4191
471513/13/1497.85%317.5137.4192
472014/13/1397.65%318.5137.4191
471014/13/1297.65%318.5137.4191
470012/13/1497.53%316.5137.4192
470313/12/1497.34%317.5136.7192
468812/12/1497.03%316.5136.7192
472315/12/1397.46%319.5136.7191
471215/12/1297.46%319.5136.7191
470814/12/1397.15%318.5136.7191
469714/12/1297.15%318.5136.7191
470513/13/1397.34%317.5137.4191
469513/13/1297.34%317.5137.4191
469012/13/1397.03%316.5137.4191
468012/13/1297.03%316.5137.4191
469313/12/1396.84%317.5136.7191
468213/12/1296.84%317.5136.7191
467812/12/1396.53%316.5136.7191
466812/12/1296.53%316.5136.7191

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
472415/15/15100.00%317.6137.9192drops nothing (Premium)
470914/15/1599.68%316.6137.9192drops nothing (Premium)
471315/15/1499.48%317.6137.9191
469413/15/1599.37%315.6137.9192
469814/15/1499.16%316.6137.9191
470315/15/1398.96%317.6137.9190
468814/15/1398.64%316.6137.9190
467912/15/1599.05%314.6137.9192
468313/15/1498.85%315.6137.9191
467313/15/1398.33%315.6137.9190
471215/14/1599.49%317.6137.2192
469714/14/1599.18%316.6137.2192
470015/13/1598.98%317.6136.5192
468514/13/1598.67%316.6136.5192
466812/15/1498.53%314.6137.9191
469315/15/1298.44%317.6137.9189
467814/15/1298.12%316.6137.9189
465812/15/1398.02%314.6137.9190
468213/14/1598.86%315.6137.2192
468815/12/1598.48%317.6135.8192
467013/13/1598.36%315.6136.5192
467314/12/1598.16%316.6135.8192
466313/15/1297.81%315.6137.9189
470115/14/1498.97%317.6137.2191
468614/14/1498.66%316.6137.2191
466712/14/1598.54%314.6137.2192
465512/13/1598.04%314.6136.5192
465813/12/1597.85%315.6135.8192
464812/15/1297.50%314.6137.9189
469115/14/1398.46%317.6137.2190
467213/14/1498.35%315.6137.2191
467614/14/1398.14%316.6137.2190
464312/12/1597.54%314.6135.8192
468915/13/1498.47%317.6136.5191
467514/13/1498.16%316.6136.5191
465712/14/1498.03%314.6137.2191
467715/12/1497.96%317.6135.8191
467915/13/1397.95%317.6136.5190
468115/14/1297.94%317.6137.2189
466113/14/1397.83%315.6137.2190
466314/12/1497.65%316.6135.8191
466414/13/1397.64%316.6136.5190
466614/14/1297.63%316.6137.2189
466715/12/1397.45%317.6135.8190
465214/12/1397.14%316.6135.8190
466013/13/1497.84%315.6136.5191
464612/14/1397.52%314.6137.2190
464813/12/1497.34%315.6135.8191
464913/13/1397.33%315.6136.5190
465113/14/1297.32%315.6137.2189
463713/12/1396.83%315.6135.8190
464512/13/1497.53%314.6136.5191
466915/13/1297.44%317.6136.5189
465414/13/1297.13%316.6136.5189
463312/12/1497.03%314.6135.8191
463512/13/1397.02%314.6136.5190
463612/14/1297.01%314.6137.2189
462312/12/1396.52%314.6135.8190
465715/12/1296.94%317.6135.8189
463913/13/1296.82%315.6136.5189
464214/12/1296.63%316.6135.8189
462412/13/1296.51%314.6136.5189
462713/12/1296.32%315.6135.8189
461212/12/1296.02%314.6135.8189

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
478015/15/15100.00%319.5138.8193drops nothing (Premium)
476815/14/1599.49%319.5138.1193drops nothing (Premium)
477015/15/1499.48%319.5138.8192drops nothing (Premium)
475815/14/1498.98%319.5138.1192drops nothing (Premium)
476514/15/1599.68%318.5138.8193
0-0 Palkia
475314/14/1599.18%318.5138.1193
0-0 Palkia
475514/15/1499.17%318.5138.8192
0-0 Palkia
474214/14/1498.66%318.5138.1192
0-0 Palkia
475615/13/1598.98%319.5137.4193
475915/15/1398.96%319.5138.8191
474915/15/1298.96%319.5138.8191
474715/14/1398.46%319.5138.1191
473715/14/1298.46%319.5138.1191
474114/13/1598.67%318.5137.4193
474414/15/1398.65%318.5138.8191
473414/15/1298.65%318.5138.8191
474515/13/1498.47%319.5137.4192
473214/14/1398.15%318.5138.1191
472214/14/1298.15%318.5138.1191
474415/12/1598.48%319.5136.7193
473014/13/1498.16%318.5137.4192
473515/13/1397.96%319.5137.4191
472515/13/1297.96%319.5137.4191
472914/12/1598.16%318.5136.7193
472014/13/1397.65%318.5137.4191
471014/13/1297.65%318.5137.4191
473315/12/1497.97%319.5136.7192
471814/12/1497.66%318.5136.7192
472315/12/1397.46%319.5136.7191
471215/12/1297.46%319.5136.7191
470814/12/1397.15%318.5136.7191
469714/12/1297.15%318.5136.7191
475013/15/1599.37%317.5138.8193
473813/14/1598.86%317.5138.1193
473913/15/1498.85%317.5138.8192
472713/14/1498.35%317.5138.1192
472613/13/1598.36%317.5137.4193
472913/15/1398.34%317.5138.8191
471913/15/1298.34%317.5138.8191
471713/14/1397.84%317.5138.1191
470713/14/1297.84%317.5138.1191
473512/15/1599.05%316.5138.8193
472312/14/1598.54%316.5138.1193
472412/15/1498.53%316.5138.8192
471212/14/1498.03%316.5138.1192
471513/13/1497.85%317.5137.4192
471313/12/1597.85%317.5136.7193
470513/13/1397.34%317.5137.4191
469513/13/1297.34%317.5137.4191
471012/13/1598.04%316.5137.4193
471412/15/1398.02%316.5138.8191
470312/15/1298.02%316.5138.8191
470212/14/1397.52%316.5138.1191
469212/14/1297.52%316.5138.1191
470012/13/1497.53%316.5137.4192
470313/12/1497.34%317.5136.7192
469812/12/1597.54%316.5136.7193
469012/13/1397.03%316.5137.4191
468012/13/1297.03%316.5137.4191
469313/12/1396.84%317.5136.7191
468213/12/1296.84%317.5136.7191
468812/12/1497.03%316.5136.7192
467812/12/1396.53%316.5136.7191
466812/12/1296.53%316.5136.7191

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
472415/15/15100.00%317.6137.9192drops nothing (Premium)
471315/15/1499.48%317.6137.9191
470315/15/1398.96%317.6137.9190
471215/14/1599.49%317.6137.2192
470914/15/1599.68%316.6137.9192
469413/15/1599.37%315.6137.9192
467912/15/1599.05%314.6137.9192
470115/14/1498.97%317.6137.2191
469115/14/1398.46%317.6137.2190
469315/15/1298.44%317.6137.9189
469814/15/1499.16%316.6137.9191
470015/13/1598.98%317.6136.5192
468313/15/1498.85%315.6137.9191
468814/15/1398.64%316.6137.9190
466812/15/1498.53%314.6137.9191
468815/12/1598.48%317.6135.8192
467313/15/1398.33%315.6137.9190
465812/15/1398.02%314.6137.9190
468115/14/1297.94%317.6137.2189
469714/14/1599.18%316.6137.2192
468213/14/1598.86%315.6137.2192
466712/14/1598.54%314.6137.2192
468614/14/1498.66%316.6137.2191
468915/13/1498.47%317.6136.5191
467213/14/1498.35%315.6137.2191
467614/14/1398.14%316.6137.2190
467814/15/1298.12%316.6137.9189
465712/14/1498.03%314.6137.2191
466113/14/1397.83%315.6137.2190
466313/15/1297.81%315.6137.9189
464612/14/1397.52%314.6137.2190
464812/15/1297.50%314.6137.9189
467715/12/1497.96%317.6135.8191
467915/13/1397.95%317.6136.5190
466715/12/1397.45%317.6135.8190
468514/13/1598.67%316.6136.5192
467013/13/1598.36%315.6136.5192
467314/12/1598.16%316.6135.8192
465512/13/1598.04%314.6136.5192
465813/12/1597.85%315.6135.8192
466614/14/1297.63%316.6137.2189
464312/12/1597.54%314.6135.8192
466915/13/1297.44%317.6136.5189
465113/14/1297.32%315.6137.2189
463612/14/1297.01%314.6137.2189
467514/13/1498.16%316.6136.5191
466013/13/1497.84%315.6136.5191
464512/13/1497.53%314.6136.5191
465715/12/1296.94%317.6135.8189
466314/12/1497.65%316.6135.8191
466414/13/1397.64%316.6136.5190
464813/12/1497.34%315.6135.8191
464913/13/1397.33%315.6136.5190
465214/12/1397.14%316.6135.8190
463312/12/1497.03%314.6135.8191
463512/13/1397.02%314.6136.5190
463713/12/1396.83%315.6135.8190
462312/12/1396.52%314.6135.8190
465414/13/1297.13%316.6136.5189
463913/13/1296.82%315.6136.5189
462412/13/1296.51%314.6136.5189
464214/12/1296.63%316.6135.8189
462713/12/1296.32%315.6135.8189
461212/12/1296.02%314.6135.8189

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.