Who to bring
CP 516–561 · boosted 646–701
† Legacy move (Elite TM) · Mega-only move
Weak to1.6x1.6x1.6x1.6x
1.6x
Galarian Yamask against every one of the 18 attacking types. GO multipliers: 1.6x super effective, 2.56x doubly, 0.625x resisted, 0.39x doubly resisted.
It resists 0.39x0.39x0.39x0.39x
0.625x
0.625x— bringing one of those is throwing damage away.
What the encounter after the fight can hand you.
| IV spread | CP at L20 | CP at L25 (weather boosted) |
|---|---|---|
| 10/10/10floor | 516 | 646 |
| 11/11/11 | 525 | 657 |
| 12/12/12 | 534 | 668 |
| 13/13/13 | 543 | 679 |
| 14/14/14 | 552 | 690 |
| 15/15/15hundo | 561 | 701 |
Caught CP range 516 - 561, or 646 - 701 when the weather boosts it.
A raid encounter is level 20 (level 25 weather boosted) and cannot roll an IV below 10/10/10. Anything outside the first range is not this raid's reward.
What Galarian Yamask throws at you: its standard movepool, with the damage window a dodge has to beat.
| Move | Power | Energy | Duration | Hits at |
|---|---|---|---|---|
| AstonishSTAB | 7 | +13 | 1.0s | 0.60s |
| Move | Power | Energy | Duration | Hits at |
|---|---|---|---|---|
| Night ShadeSTAB | 60 | -50 | 2.5s | 2.00s |
| Rock Tomb | 65 | -50 | 3.0s | 2.05s |
Simulating each boss moveset…
Beating Galarian Yamask should take 1 trainer with level 40 counters. Caught CP 516-561.
Type a name, then Enter or click a result
Galarian Yamask is not on the raid schedule right now. The simulation above is still exact for the tier chosen — any boss can be simulated, current or not.
The chevron on the top 15 opens damage per move, breakpoints and the energy cycle. Every column (CP, faints, power, pokebattler.com's own rank) is under All settings.
The same boss is a different fight depending on what it knows. Each row re-simulates the top 6 counters above against one specific moveset; the list is ordered hardest first, and clicking a row filters the whole page to that moveset — the ranking, the estimator and the share link all follow.
| Boss moveset | Win % (1) | Overall | Power | Time to win | Faints | Estimator |
|---|---|---|---|---|---|---|
| Random (any moveset)showing | 100% | 1172% | 4001.7% | 0:11 | 0.0 | 0.06 |
| Astonish / Night Shade | 100% | 1153% | 3981.4% | 0:11 | 0.0 | 0.06 |
| Astonish / Rock Tomb |
Tier 1: 600 HP, 3:00 timer, boss Attack 65 / Defense 93 (15/15/15 at tier CPM 0.5974).
On a phone the list shows estimator, time to win and faints. Overall, Power, win chance, CP, DPS and TDO appear on a wider screen.
| # | Attacker | Moveset | Overall | Power | Est.Estimator | TimeTime to win | Faints | Win % (1) | CP | DPS | TDO |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mega Greninja megaWater Shuriken / Surf+ | Water Shuriken / Surf++17 more movesets | 100% | 5315.9% | 0.05 | 0:08 | 0.0 | 100% | 3,784 | 73.9 | 606 |
| 2 | Mega Starmie  megaPsywave / Liquidation+ | Psywave / Liquidation++44 more movesets | 76% | 4843.3% | 0.05 | 0:09 | 0.0 | 100% | 3,701 | 71.8 | 646 |
| 3 | Mega Houndoom  megaSnarl / Dark Pulse+ | Snarl / Dark Pulse++17 more movesets | 77% | 4657.1% | 0.05 | 0:09 | 0.0 | 100% | 3,842 | 76.1 | 712 |
| 4 | Necrozma (Dawn Wings) Psycho Cut / Moongeist Beam | Psycho Cut / Moongeist Beam+14 more movesets | 66% | 4359.9% | 0.06 | 0:10 | 0.0 | 100% | 4,099 | 63.1 | 631 |
| 5 | Mega Chesnaught megaVine Whip / Seed Bomb+ | Vine Whip / Seed Bomb++20 more movesets | 69% | 4021.2% | 0.06 | 0:11 | 0.0 | 100% | 4,093 | 61.6 | 667 |
| 6 | Mega Gengar megaShadow Claw / Shadow Ball | Shadow Claw / Shadow Ball+31 more movesets | 53% | 3791.1% | 0.06 | 0:11 | 0.0 | 100% | 4,336 | 52.4 | 603 |
| 7 | Kyurem (White)  Ice Fang / Ice Burn | Ice Fang / Ice Burn+17 more movesets | 62% | 3791.1% | 0.06 | 0:11 | 0.0 | 100% | 4,605 | 55.5 | 638 |
| 8 | Mega Mewtwo Y megaConfusion / Future Sight+ | Confusion / Future Sight++26 more movesets | 59% | 3725.6% | 0.07 | 0:12 | 0.0 | 100% | 6,428 | 59.5 | 696 |
| 9 | Shadow Darkrai shadowSnarl / Foul Play | Snarl / Foul Play+14 more movesets | 58% | 3707.3% | 0.07 | 0:12 | 0.0 | 100% | 3,739 | 56.9 | 668 |
| 10 | Shadow Hydreigon shadowBite / Brutal Swing | Bite / Brutal Swing+9 more movesets | 56% | 3633.1% | 0.07 | 0:12 | 0.0 | 100% | 3,625 | 50.2 | 602 |
| 11 | Mega Sceptile megaFury Cutter / Frenzy Plant | Fury Cutter / Frenzy Plant+11 more movesets | 57% | 3633.1% | 0.07 | 0:12 | 0.0 | 100% | 4,056 | 50.2 | 602 |
| 12 | Shadow Kingler shadowBubble / Crabhammer | Bubble / Crabhammer+14 more movesets | 51% | 3633.1% | 0.07 | 0:12 | 0.0 | 100% | 2,829 | 52.0 | 624 |
| 13 | Shadow Crawdaunt shadowSnarl / Crabhammer | Snarl / Crabhammer+11 more movesets | 53% | 3633.1% | 0.07 | 0:12 | 0.0 | 100% | 2,474 | 50.5 | 606 |
| 14 | Mega Tyranitar megaBite / Brutal Swing | Bite / Brutal Swing+15 more movesets | 61% | 3600.1% | 0.07 | 0:12 | 0.0 | 100% | 5,347 | 49.8 | 604 |
| 15 | Shadow Greninja shadowBubble / Hydro Cannon | Bubble / Hydro Cannon+14 more movesets | 53% | 3538.7% | 0.07 | 0:12 | 0.0 | 100% | 2,654 | 50.3 | 620 |
| 16 | Primal Kyogre megaWaterfall / Surf | Waterfall / Surf+5 more movesets | 56% | 3487.8% | 0.07 | 0:12 | 0.0 | 100% | 5,902 | 48.7 | 609 |
| 17 | Shadow Tyranitar shadowBite / Brutal Swing | Bite / Brutal Swing+15 more movesets | 54% | 3487.8% | 0.07 | 0:12 | 0.0 | 100% | 3,834 | 48.8 | 610 |
| 18 | Shadow Galarian Darmanitan (Standard) shadowIce Fang / Avalanche | Ice Fang / Avalanche+7 more movesets | 49% | 3487.8% | 0.07 | 0:12 | 0.0 | 100% | 3,105 | 50.2 | 627 |
| 19 | Shadow Mewtwo shadowPsycho Cut / Shadow Ball | Psycho Cut / Shadow Ball+23 more movesets | 50% | 3446.4% | 0.07 | 0:13 | 0.0 | 100% | 4,178 | 49.1 | 620 |
| 20 | Shadow Weavile shadowSnarl / Avalanche | Snarl / Avalanche+11 more movesets | 50% | 3432.8% | 0.07 | 0:13 | 0.0 | 100% | 3,005 | 50.9 | 646 |
| 21 | Mega Absol megaPsycho Cut / Brutal Swing | Psycho Cut / Brutal Swing+9 more movesets | 51% | 3422.0% | 0.07 | 0:13 | 0.0 | 100% | 3,301 | 47.6 | 606 |
| 22 | Mega Alakazam megaPsycho Cut / Shadow Ball | Psycho Cut / Shadow Ball+17 more movesets | 49% | 3419.4% | 0.07 | 0:13 | 0.0 | 100% | 4,510 | 49.3 | 628 |
| 23 | Mega Mewtwo X megaPsycho Cut / Shadow Ball | Psycho Cut / Shadow Ball+26 more movesets | 54% | 3379.6% | 0.07 | 0:13 | 0.0 | 100% | 6,112 | 53.8 | 694 |
| 24 | Shadow Sceptile shadowBullet Seed / Frenzy Plant | Bullet Seed / Frenzy Plant+11 more movesets | 48% | 3353.6% | 0.07 | 0:13 | 0.0 | 100% | 2,757 | 46.3 | 602 |
| 25 | Shadow Cacturne shadowSucker Punch / Grass Knot | Sucker Punch / Grass Knot+14 more movesets | 48% | 3353.6% | 0.07 | 0:13 | 0.0 | 100% | 2,298 | 46.8 | 608 |
| 26 | Shadow Giratina (Origin) shadowShadow Claw / Shadow Force | Shadow Claw / Shadow Force+7 more movesets | 49% | 3348.4% | 0.07 | 0:13 | 0.0 | 100% | 3,683 | 50.7 | 660 |
| 27 | Shadow Gengar shadowHex / Shadow Ball | Hex / Shadow Ball+31 more movesets | 45% | 3322.9% | 0.07 | 0:13 | 0.0 | 100% | 2,878 | 53.2 | 697 |
| 28 | Shadow Haunter shadowLick / Shadow Ball | Lick / Shadow Ball+14 more movesets | 41% | 3307.8% | 0.07 | 0:13 | 0.0 | 100% | 1,963 | 48.5 | 638 |
| 29 | Kyurem (Black) Dragon Tail / Freeze Shock | Dragon Tail / Freeze Shock+11 more movesets | 52% | 3277.9% | 0.07 | 0:13 | 0.0 | 100% | 4,605 | 53.2 | 707 |
| 30 | Kartana  Fury Cutter / Leaf Blade | Fury Cutter / Leaf Blade+14 more movesets | 48% | 3229.4% | 0.08 | 0:13 | 0.0 | 100% | 3,677 | 46.5 | 627 |
Ranking. Our full ranking against the page pokebattler.com serves for the same boss and settings, on 27 boss and filter combinations read live (2026-10-04): 242 of 270 top-ten places shared, the same #1 on 26. On the six fixed reference bosses (read 2026-10-03): 85% top-ten overlap with its default filters, 83% with Shadow, Mega and Legendary on. A close top three is shown as a tie because the order inside it is below what we can measure.
Time to win. Graded with Pokebattler's own movesets against every boss moveset, average per boss: Tier 1 and 3 +0.1% to +1.2%; Tier 5 −2.9% to +1.3%; Mega −1.1% to +2.6%; Shadow Tier 5 −1.8% to +0.3%. One attacker can be off by more: median 1.6%, worst 15%, RMS per boss moveset 2.05%.
Ranked 30 attackers in 0.1 s (50 Monte Carlo runs each, seed 1). Same boss on pokebattler.com. The same ranking as JSON: /api/raids/rank.
Of the game's eleven Adventure Effects only Behemoth Blade (Crowned Sword Zacian), Behemoth Bash (Crowned Shield Zamazenta) and Dynamic Punch+ (Mega Mewtwo X) change a raid; Roar of Time, Spacial Rend, Freeze Shock, Ice Burn, Sunsteel Strike, Moongeist Beam, Future Sight+ and Dynamax Cannon act outside raids. Dynamic Punch+ only counts against a Mega boss, so it changes nothing here. Sources: the full list, Behemoth Blade / Bash, Dynamic Punch+.
| 100% |
| 1180% |
| 4001.7% |
| 0:11 |
| 0.0 |
| 0.06 |
Measured over the top 6 attackers on the list above rather than by re-ranking the whole roster once per moveset — the ordering is what the table is for, and a full re-rank per moveset would cost ten times the page's whole simulation budget. Win % is the share of runs 1 trainers of those attackers finish inside the raid timer. Overall is Pokebattler's published blend on its own absolute scale (higher is easier), not a percentage of the best row the way the ranked table's Overall column is — which is why an easy boss reads well above 100% here.
