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Castform counters

#0351

normalTier 1

Lobby CP

4,681

Attack

Defense

600

Raid timer

3 min

180s

Caught CP range 875 - 932.

Raid tierTier 3Tier 1Tier 5 Elite Full counter tool (weather, friendship, dodge, Shadow / Mega / Legendary) →

Castform 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.

Castform is weak to fighting1.6x

fighting1.6x normal1x flying1x poison1x ground1x rock1x bug1x steel1x fire1x water1x grass1x electric1x psychic1x ice1x dragon1x dark1x fairy1x ghost0.39x

Weak (1)
Neutral (16)
Resists (1)

It resists ghost0.39x— bringing one of those is throwing damage away.

Best Castform counters

One trainer with counters this good beats Castform alone. Difficulty rating 0.07 with the best counter, 0:13 to win.

Trainers1soloable

#	Attacker	Moveset
1	Lucariofightingsteeljoint top pick	fightingForce PalmfightingAura Sphere	2,703	0:13	0.07	3312.8%
2	Blazikenfirefighting	fightingCounterfightingAura Sphere	2,848	0:14	0.08	3109.6%
3	Conkeldurrfighting	fightingCounterfightingFocus Blast	3,337	0:14	0.08	3006.6%
4	Machampfighting	fightingCounterfightingDynamic Punch	3,056	0:15	0.09	2842.0%
5	Hisuian Decidueyegrassfighting	psychicPsycho CutfightingAura Sphere	2,897	0:16	0.09	2757.5%
6	Hariyamafighting	fightingForce PalmfightingDynamic Punch	2,829	0:16	0.09	2707.8%
7	Galladepsychicfighting	fightingLow KickfightingSacred Sword	3,093	0:16	0.09	2761.0%
8	Sirfetch'dfighting	fightingCounterfightingClose Combat	2,985	0:15	0.09	2812.6%
9	Breloomgrassfighting	fightingCounterfightingDynamic Punch	2,628	0:15	0.08	2883.3%
10	Passimianfighting	fightingCounterfightingSuperpower	3,033	0:17	0.09	2564.4%
11	Hawluchafightingflying	fightingLow KickfightingFlying Press	2,410	0:17	0.09	2635.7%
12	Haxorusdragon	fightingCounterdragonBreaking Swipe	3,593	0:17	0.10	2558.4%

Ordered by Overall, pokebattler.com's own default — a blend of how fast the fight ends and how many of your six go down. Click any numeric column heading to re-order on that column alone.

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.

Estimator is how many trainers of this strength the fight needs. Power is the share of Castform'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 boss rolls one of these 28 pairings, and it changes the fight. Each row re-runs the top 6 counters against that single moveset.

#	Boss moveset	Time to win	Estimator	Win %
1	darkBite+darkCrunchhardest	0:15	0.08	100%
2	darkBite+rockAncient Power	0:15	0.08	100%
3	darkBite+grassEnergy Ball	0:15	0.08	100%
4	ghostHex+grassEnergy Ball	0:15	0.08	100%
5	ghostHex+rockAncient Power	0:15	0.08	100%
6	darkBite+rockWeather Ball (Rock)	0:15	0.08	100%
7	ghostHex+darkCrunch	0:15	0.08	100%
8	normalTackle+darkCrunch	0:15	0.08	100%
9	normalTackle+grassEnergy Ball	0:15	0.08	100%
10	normalTackle+rockAncient Power	0:15	0.08	100%
11	ghostHex+rockWeather Ball (Rock)	0:15	0.08	100%
12	ghostHex+normalStomp	0:15	0.08	100%
13	normalTackle+rockWeather Ball (Rock)	0:15	0.08	100%
14	darkBite+flyingHurricane	0:15	0.08	100%
15	fightingRock Smash+darkCrunch	0:15	0.08	100%
16	normalTackle+normalStomp	0:15	0.08	100%
17	darkBite+normalStomp	0:15	0.08	100%
18	normalTackle+flyingHurricane	0:15	0.08	100%
19	fightingRock Smash+grassEnergy Ball	0:15	0.08	100%
20	ghostHex+normalWeather Ball (Normal)	0:15	0.08	100%
21	fightingRock Smash+rockAncient Power	0:15	0.08	100%
22	darkBite+normalWeather Ball (Normal)	0:15	0.08	100%
23	fightingRock Smash+rockWeather Ball (Rock)	0:15	0.08	100%
24	normalTackle+normalWeather Ball (Normal)	0:15	0.08	100%
25	fightingRock Smash+normalStomp	0:15	0.08	100%
26	ghostHex+flyingHurricane	0:15	0.08	100%
27	fightingRock Smash+normalWeather Ball (Normal)	0:15	0.08	100%
28	fightingRock Smash+flyingHurricane	0:14	0.08	100%

A raid boss rolls only its standard movepool — never a legacy or Elite TM move, verified against Pokebattler's own per-moveset list for six reference bosses. The ranked table above averages over all of these, which is what Pokebattler's DEFENSE_RANDOM_MC means.

What Castform throws at you

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

Fast moves

Move	Power	Energy	Duration	Hits at
normalTackleSTAB	5	+5	0.5s	0.30s
darkBite	6	+4	0.5s	0.30s
fightingRock Smash	17	+12	1.5s	0.75s
ghostHex	8	+13	1.0s	0.80s

Charged moves

Move	Power	Energy	Duration	Hits at
normalWeather Ball (Normal)STAB	55	-33	1.5s	1.25s
flyingHurricane	105	-100	2.5s	1.00s
normalStompSTAB	50	-50	1.5s	0.90s
rockWeather Ball (Rock)	55	-33	1.5s	1.25s
grassEnergy Ball	90	-50	4.0s	3.10s
darkCrunch	65	-33	3.0s	1.10s
rockAncient Power	70	-33	3.5s	2.85s

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

Read from the committed LeekDuck rotation snapshot, fetched 2026-10-05.

Castform is not in the current rotation snapshot. The simulation below is still exact for the tier chosen above — Pokebattler simulates any defender you name, current boss or not.

Boss stats

How the numbers in the header are built.

Base Attack

139

Game Master

Base Defense

139

Game Master

Base Stamina

172

ignored by a raid boss

Tier CPM

0.5974

600 fixed HP

Header number	Worked out	Value	Inputs from
Attack	floor((139 + 15) x 0.5974)	91	Game Master base Attack, tier CPM
Defense	floor((139 + 15) x 0.5974)	91	Game Master base Defense, tier CPM
HP	600 — fixed by tier, base Stamina 172 unused	600	tier HP pool
Lobby CP	floor((139 + 15) x sqrt(139 + 15) x sqrt(600) / 10) — no CPM term	4,681	Game Master base stats, tier HP pool

A raid boss uses 15/15/15 IVs, its tier's CP multiplier and its tier's fixed HP pool — stamina does nothing, which is why the same species is a different fight at every tier. Every tier constant above (CPM 0.5974, 600 HP, 180s timer) is copied from Pokebattler's own published /raids tier table into src/engine/constants.ts, with the source named there.

Castform's own Pokemon page has its full movepool, evolution family, stat ranks and what it is good against as an attacker.