Castform (Snowy) counters

#0351

iceTier 5

Lobby CP

23,405

15,000

Timer

5:00

Attack

121

Defense

121

Difficulty

1.06

Pokebattler scale

Beating Castform (Snowy) should take 1 trainer with level 40 counters. Caught CP 875-932.

Weak tofighting1.6xrock1.6xsteel1.6xfire1.6x

Who to bring

IncludeMega Legendary Shadow

Improve your raidweather · friendship · Mega in the lobby · Party Power · Adventure EffectsShow ▾

Weather

★ boosts a type this boss is weak to

No boost Sunny or clear ★Rainy Partly cloudy ★Cloudy ★Windy Snow ★Fog

Friendship

every trainer in the lobby who is your friend

None Good friend (+3%)Great friend (+5%)Ultra friend (+7%)Best friend (+10%)

Mega in the lobby

a Mega boosts every trainer's attacks: 1.3x of its own type, 1.1x of others

Try a Steel Mega — most top counters attack with Steel

Party Power

Party Play: the charged move after a full meter does 2x

Off 2 trainers 3 trainers 4 trainers

Adventure Effects

only these three change a raid

Behemoth Blade (+10% attack)Behemoth Bash (+10% defense)Dynamic Punch+ (+15% attack vs Mega)

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+.

Best counters

Mega, Legendary, Shadow · level 40

The best Castform (Snowy) counters are Mega Mewtwo X, Zacian (Crowned Sword), Zamazenta (Crowned Shield), Necrozma (Dusk Mane), Shadow Reshiram & Blacephalon.

Suggested party of sixat most one Mega

M. Mewtwo X
Zacian (Crowned Sword)
Zamazenta (Crowned Shield)
Necrozma (Dusk Mane)
S. Reshiram
Blacephalon

5 more Megas ranked inside the top six — a party can hold only one Mega, so the best one stays and the next non-Mega takes the slot.

Ranked by Estimator (trainers needed); small print: time to winOrder byEstimatorOverall %

1Mega Mewtwo XMegaLegendarypartyCounter / Dynamic Punch+0.924:13
2Mega DelphoxMegaFire Spin / Mystical Fire+1.024:42
3Mega LucarioMegaForce Palm / Aura Sphere1.074:57
4Zacian (Crowned Sword)LegendarypartyMetal Claw / Behemoth Blade1.105:03
5Mega BlazikenMegaCounter / Aura Sphere1.135:11
6Zamazenta (Crowned Shield)LegendarypartyMetal Claw / Behemoth Bash1.135:12
7Necrozma (Dusk Mane)LegendarypartyMetal Claw / Sunsteel Strike1.135:13
8Mega FalinksMegaCounter / Brick Break+1.205:31
9Mega Mewtwo YMegaLegendaryCounter / Future Sight+1.205:31
10Shadow ReshiramShadowLegendarypartyFire Fang / Fusion Flare1.225:37
11BlacephalonLegendarypartyIncinerate / Mind Blown1.245:43

More orders under All settings (Sort by). The top 15 in detail.

Build and order a party of six →Plan your raid lobby →

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Raid tier — Legendary Raid

Super Mega Legendary Super Mega Primal Mega Legendary Mega Elite Shadow Tier 5 Tier 5 Shadow Tier 3 Tier 3 Shadow Tier 1 Tier 1 Tier 4 Tier 2

Raid alerts…

Top 15 Castform (Snowy) counters in detail

Click a row for damage per move, breakpoints and the energy cycle. Click a column to sort. All 30 ranked attackers, with every column, are under All settings.

Trainers1soloable

#	Attacker	Moveset
1	Mega Mewtwo Xpsychicfightingjoint top pick	fightingCounterfightingDynamic Punch+	6,112	4:13	0.92	5.2	120.0%
2	Mega Delphoxfirepsychic	fireFire SpinfireMystical Fire+	4,783	4:42	1.02	4.4	107.8%
3	Mega Lucariofightingsteel	fightingForce PalmfightingAura Sphere	3,826	4:57	1.07	5.7	102.5%
4	Zacian (Crowned Sword)fairysteel	steelMetal ClawsteelBehemoth Blade	4,979	5:03	1.10	4.3	100.3%
5	Mega Blazikenfirefighting	fightingCounterfightingAura Sphere	4,161	5:11	1.13	5.8	97.9%
6	Zamazenta (Crowned Shield)fightingsteel	steelMetal ClawsteelBehemoth Bash	4,172	5:12	1.13	3.9	97.4%
7	Necrozma (Dusk Mane)psychicsteel	steelMetal ClawsteelSunsteel Strike	4,099	5:13	1.13	4.6	97.1%
8	Mega Falinksfighting	fightingCounterfightingBrick Break+	3,670	5:31	1.20	6.0	91.9%
9	Mega Mewtwo Ypsychic	fightingCounterpsychicFuture Sight+	6,428	5:31	1.20	5.7	91.9%
10	Shadow Reshiramdragonfire	fireFire FangfireFusion Flare	4,038	5:37	1.22	6.0	90.3%
11	Blacephalonfireghost	fireIncineratefireMind Blown	3,297	5:43	1.24	6.0	88.8%
12	Keldeowaterfighting	fightingLow KickfightingSecret Sword	3,698	5:51	1.27	5.1	86.5%
13	Shadow Blazikenfirefighting	fightingCounterfightingAura Sphere	2,848	5:53	1.28	6.0	86.2%
14	Mega Charizard Yfireflying	fireFire SpinfireBlast Burn	4,455	5:55	1.28	6.0	85.7%
15	Shadow Metagrosssteelpsychic	steelBullet PunchsteelMeteor Mash	3,791	6:00	1.31	5.5	84.4%

Ordered by Estimator alone, fewest trainers needed first. . The place badge names each row's Overall place on hover.

Times are one trainer with six copies of that attacker, level 40 at 15/15/15, no weather, no friendship, no dodging, Shadow / Mega / Legendary attackers hidden — the same defaults pokebattler.com's own counter pages open with. Open the full counter tool to change any of them. "Details" opens the per-move damage, breakpoints and energy cycle against Castform (Snowy).

Estimator is how many trainers of this strength the fight needs. Power is the share of Castform (Snowy)'s HP that six of that attacker remove inside one raid timer, so over 100% means they finish it with time to spare. Faints is how many of the six go down inside that timer.

Hardest movesets to raid against

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	26%	225%	97.8%	5:11	5.0	1.13
Powder Snow / Blizzard	19%	200%	96.6%	5:15	5.5	1.14
Tackle / Blizzard	21%	202%	97.0%	5:13	5.5	1.13
Tackle / Ice Beam	24%	223%	97.7%	5:11	5.1	1.13
Powder Snow / Ice Beam	26%	228%	98.1%	5:10	5.0	1.12
Tackle / Weather Ball (Ice)	21%	255%	98.2%	5:10	4.6	1.12
Powder Snow / Weather Ball (Ice)	24%	262%	98.8%	5:08	4.5	1.12

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.

Simulating each boss moveset…

Castform (Snowy) weaknesses and resistances

Every one of the 18 attacking types against this boss's typing. GO multipliers: 1.6x super effective, 2.56x doubly, 0.625x resisted, 0.39x doubly resisted.

fighting1.6x rock1.6x steel1.6x fire1.6x normal1x flying1x poison1x ground1x bug1x ghost1x water1x grass1x electric1x psychic1x dragon1x dark1x fairy1x ice0.63x

Weak (4)
Neutral (13)
Resists (1)

It resists ice0.625x— bringing one of those is throwing damage away.

What Castform (Snowy) throws at you

Its standard movepool, with the damage window a dodge has to beat.

Fast moves

Move	Power	Energy	Duration	Hits at
normalTackle	5	+5	0.5s	0.30s
icePowder SnowSTAB	6	+15	1.0s	0.85s

Charged moves

Move	Power	Energy	Duration	Hits at
iceBlizzardSTAB	130	-100	3.0s	1.40s
iceWeather Ball (Ice)STAB	55	-33	1.5s	1.25s
iceIce BeamSTAB	95	-50	3.5s	1.50s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
10/10/10floor	875	1,094
11/11/11	886	1,108
12/12/12	898	1,122
13/13/13	909	1,137
14/14/14	921	1,151
15/15/15hundo	932	1,165

Caught CP range 875 - 932, or 1,094 - 1,165 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.

When it is in raids

From the raid schedule, refreshed daily.

Castform (Snowy) 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.

All settings

Tier 5: 15,000 HP, 5:00 timer, boss Attack 121 / Defense 121 (15/15/15 at tier CPM 0.79).

Raid bossAttacker levelAttacker IVsWeatherFriendshipDodgingTrainers in the lobbyMega in the lobbyParty Play trainersBoss fast moveBoss charged moveSort by

Attackers allowed

ShadowMega and PrimalLegendary, Mythical, Ultra BeastLegacy and Elite TM moves

Share these exact settings

Every column, and pokebattler.com's own rank

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 Mewtwo X psychicfightingmega Counter / Dynamic Punch+	Counter / Dynamic Punch++26 more movesets	100%	120.0%	0.92	4:13	5.1	100%	6,112	60.8	2461
2	Mega Delphox firepsychicmega Fire Spin / Mystical Fire+	Fire Spin / Mystical Fire++23 more movesets	91%	107.8%	1.02	4:42	4.2	100%	4,783	53.7	2848
3	Mega Lucario fightingsteelmega Force Palm / Aura Sphere	Force Palm / Aura Sphere+23 more movesets	83%	102.5%	1.07	4:57	6.4	66%	3,826	51.8	2041
4	Zacian (Crowned Sword) fairysteel Metal Claw / Behemoth Blade	Metal Claw / Behemoth Blade+7 more movesets	85%	100.3%	1.10	5:03	4.2	40%	4,979	50.0	2887
5	Mega Blaziken firefightingmega Counter / Aura Sphere	Counter / Aura Sphere+20 more movesets	80%	97.9%	1.13	5:11	6.3	0%	4,161	49.5	2042
6	Zamazenta (Crowned Shield) fightingsteel Metal Claw / Behemoth Bash	Metal Claw / Behemoth Bash+7 more movesets	83%	97.4%	1.13	5:12	3.9	0%	4,172	48.2	3081
7	Necrozma (Dusk Mane) psychicsteel Metal Claw / Sunsteel Strike	Metal Claw / Sunsteel Strike+14 more movesets	82%	97.1%	1.13	5:13	4.5	0%	4,099	48.6	2699
8	Mega Falinks fightingmega Counter / Brick Break+	Counter / Brick Break++7 more movesets	72%	91.9%	1.20	5:31	8.8	0%	3,670	46.9	1519
9	Mega Mewtwo Y psychicmega Counter / Future Sight+	Counter / Future Sight++26 more movesets	74%	91.9%	1.20	5:31	6.7	0%	6,428	46.6	1925
10	Shadow Reshiram dragonfireshadow Fire Fang / Fusion Flare	Fire Fang / Fusion Flare+9 more movesets	71%	90.3%	1.22	5:37	9.0	0%	4,038	45.9	1484
11	Blacephalon fireghost Incinerate / Mind Blown	Incinerate / Mind Blown+7 more movesets	69%	88.8%	1.24	5:43	9.4	0%	3,297	45.3	1426
12	Keldeo waterfighting Low Kick / Secret Sword	Low Kick / Secret Sword+11 more movesets	71%	86.5%	1.27	5:51	5.8	0%	3,698	43.6	2201
13	Shadow Blaziken firefightingshadow Counter / Aura Sphere	Counter / Aura Sphere+20 more movesets	67%	86.2%	1.28	5:53	9.9	0%	2,848	43.9	1368
14	Mega Charizard Y fireflyingmega Fire Spin / Blast Burn	Fire Spin / Blast Burn+29 more movesets	67%	85.7%	1.28	5:55	9.3	0%	4,455	43.8	1453
15	Shadow Metagross steelpsychicshadow Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	68%	84.4%	1.31	6:00	6.8	0%	3,791	42.6	1931
16	Mega Gallade psychicfightingmega Low Kick / Sacred Sword	Low Kick / Sacred Sword+19 more movesets	65%	84.0%	1.31	6:02	10.2	0%	4,521	42.8	1364
17	Mega Metagross steelpsychicmega Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	69%	82.2%	1.34	6:10	4.8	0%	4,911	41.1	2579
18	Shadow Darmanitan (Standard) fireshadow Fire Fang / Overheat	Fire Fang / Overheat+11 more movesets	63%	81.2%	1.36	6:15	9.9	0%	3,105	41.3	1349
19	Shadow Heatran firesteelshadow Fire Spin / Magma Storm	Fire Spin / Magma Storm+11 more movesets	68%	80.6%	1.37	6:17	4.6	0%	3,754	40.1	2675
20	Shadow Rampardos rockshadow Smack Down / Rock Slide	Smack Down / Rock Slide+5 more movesets	58%	78.6%	1.40	6:27	16.2	0%	3,298	41.0	855
21	Shadow Chandelure ghostfireshadow Fire Spin / Overheat	Fire Spin / Overheat+19 more movesets	61%	78.6%	1.40	6:27	10.1	0%	3,268	40.2	1343
22	Shadow Conkeldurr fightingshadow Force Palm / Dynamic Punch	Force Palm / Dynamic Punch+11 more movesets	60%	78.4%	1.40	6:28	12.3	0%	3,337	40.3	1110
23	Lucario fightingsteel Force Palm / Aura Sphere	Force Palm / Aura Sphere+23 more movesets	60%	77.7%	1.42	6:31	10.6	0%	2,703	39.6	1317
24	Mega Heracross bugfightingmega Counter / Close Combat	Counter / Close Combat+17 more movesets	59%	76.5%	1.44	6:38	9.8	0%	4,814	38.9	1379
25	Shadow Emboar firefightingshadow Low Kick / Blast Burn	Low Kick / Blast Burn+9 more movesets	59%	76.3%	1.44	6:39	10.0	0%	2,982	38.8	1356
26	Shadow Delphox firepsychicshadow Fire Spin / Blast Burn	Fire Spin / Blast Burn+20 more movesets	60%	76.1%	1.45	6:40	9.2	0%	3,059	38.6	1458
27	Shadow Ho-Oh fireflyingshadow Incinerate / Sacred Fire++	Incinerate / Sacred Fire+++27 more movesets	59%	75.8%	1.45	6:41	9.5	0%	3,863	38.6	1417
28	Shadow Dialga steeldragonshadow Metal Claw / Iron Head	Metal Claw / Iron Head+5 more movesets	58%	75.8%	1.45	6:41	11.4	0%	4,038	38.6	1212
29	Reshiram dragonfire Fire Fang / Fusion Flare	Fire Fang / Fusion Flare+9 more movesets	59%	75.5%	1.46	6:43	9.6	0%	4,038	38.4	1409
30	Mega Diancie rockfairymega Rock Throw / Rock Slide	Rock Throw / Rock Slide+5 more movesets	58%	75.4%	1.46	6:43	11.9	0%	4,346	38.7	1148

How accurate is this? Same top pick as pokebattler.com on 26 of 27 lists checked, 90% of its top tens shared; weakest on Mewtwo's default list (7 of 10).

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%.

Known weak spots.

Mewtwo (Tier 5, default filters) shares 7 of Pokebattler's top 10: Absol, Incineroar and Salamence sit just outside ours, Polteageist, Cursola and Hisuian Typhlosion just inside.
Groudon (Tier 5, default filters) shares 7 of 10; its Grass and Water counters run 2-6% fast here.
Tier 5 times run about 2-3% fast for attackers that faint often, and 2-3% slow on Mega Charizard Y and Mega Beedrill, whose counters resist the boss.
Tier 1 lists are the least checked: Combee (Tier 1) shares only 3 of Pokebattler's top 10, with Gigalith first here where Pokebattler puts Rhyperior.

This boss on pokebattler.com. Boss-by-boss accuracy report.

Ranked 30 attackers in 0.8 s (50 Monte Carlo runs each, seed 1). Same boss on pokebattler.com. The same ranking as JSON: /api/raids/rank.