Shroomish counters

#0285

grassTier 1

Lobby CP

2,437

600

Timer

3:00

Attack

Defense

Difficulty

0.05

Pokebattler scale

Beating Shroomish should take 1 trainer with level 40 counters. Caught CP 421-463.

Weak toflying1.6xpoison1.6xbug1.6xfire1.6xice1.6x

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 Flying Mega — most top counters attack with Flying

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 Shroomish counters are Mega Mewtwo X, Blacephalon, Shadow Blaziken, Shadow Salamence, Shadow Moltres & Rayquaza.

Suggested party of sixat most one Mega

M. Mewtwo X
Blacephalon
S. Blaziken
S. Salamence
S. Moltres
Rayquaza

7 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 XMegaLegendarypartyPsycho Cut / Dynamic Punch+0.050:08
2Mega Mewtwo YMegaLegendaryPsycho Cut / Future Sight+0.050:08
3Mega StaraptorMegaSand Attack / Brave Bird+0.050:09
4BlacephalonLegendarypartyIncinerate / Mind Blown0.050:09
5Mega BlazikenMegaFire Spin / Blaze Kick0.050:09
6Mega DelphoxMegaFire Spin / Blast Burn0.050:09
7Mega Charizard YMegaFire Spin / Blast Burn0.050:09
8Shadow BlazikenShadowpartyFire Spin / Blast Burn0.050:09
9Mega BeedrillMegaInfestation / Fell Stinger+0.050:10
10Mega HeracrossMegaFury Cutter / Megahorn0.060:10
11Shadow SalamenceShadowpartyFire Fang / Fly0.060:10
12Shadow MoltresShadowLegendarypartyFire Spin / Fly0.060:10
13RayquazaLegendarypartyAir Slash / Dragon Ascent0.060:10

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

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

Best from your Pokebox

Pokebox

The Pokebox saved in this browser · each at its own level, IVs and moves.

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Raid tier — Solo 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

Related countersShadow Shroomish

Raid alerts…

Top 15 Shroomish 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	psychicPsycho CutfightingDynamic Punch+	6,112	0:08	0.05	5277.2%
2	Mega Mewtwo Ypsychic	psychicPsycho CutpsychicFuture Sight+	6,428	0:08	0.05	5164.7%
3	Mega Staraptorfightingflying	groundSand AttackflyingBrave Bird+	3,979	0:09	0.05	5128.2%
4	Blacephalonfireghost	fireIncineratefireMind Blown	3,297	0:09	0.05	4844.4%
5	Mega Blazikenfirefighting	fireFire SpinfireBlaze Kick	4,161	0:09	0.05	4608.8%
6	Mega Delphoxfirepsychic	fireFire SpinfireBlast Burn	4,783	0:09	0.05	4608.8%
7	Mega Charizard Yfireflying	fireFire SpinfireBlast Burn	4,455	0:09	0.05	4589.4%
8	Shadow Blazikenfirefighting	fireFire SpinfireBlast Burn	2,848	0:09	0.05	4589.4%
9	Mega Beedrillbugpoison	bugInfestationbugFell Stinger+	3,383	0:10	0.05	4540.6%
10	Mega Heracrossbugfighting	bugFury CutterbugMegahorn	4,814	0:10	0.06	4359.9%
11	Shadow Salamencedragonflying	fireFire FangflyingFly	3,749	0:10	0.06	4359.9%
12	Shadow Moltresfireflying	fireFire SpinflyingFly	3,465	0:10	0.06	4359.9%
13	Rayquazadragonflying	flyingAir SlashflyingDragon Ascent	3,835	0:10	0.06	4257.7%
14	Mega Rayquazadragonflying	flyingAir SlashdragonBreaking Swipe	5,713	0:10	0.06	4241.1%
15	Kyurem (White)dragonice	iceIce FangiceBlizzard	4,605	0:10	0.06	4152.2%

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 Shroomish.

Estimator is how many trainers of this strength the fight needs. Power is the share of Shroomish'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	Estimator
Random (any moveset)showing	100%	1459%	4575.8%	0:10	0.05
Tackle / Grass Knot	100%	1388%	4549.3%	0:10	0.05
Tackle / Energy Ball	100%	1531%	4549.3%	0:10	0.05
Bullet Seed / Energy Ball	100%	1509%	4589.2%	0:09	0.05
Tackle / Seed Bomb	100%	1434%	4592.6%	0:09	0.05
Bullet Seed / Seed Bomb	100%	1472%	4623.0%	0:09	0.05
Bullet Seed / Grass Knot	100%	1447%	4623.0%	0:09	0.05

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…

Shroomish 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.

flying1.6x poison1.6x bug1.6x fire1.6x ice1.6x normal1x fighting1x rock1x ghost1x steel1x psychic1x dragon1x dark1x fairy1x ground0.63x water0.63x grass0.63x electric0.63x

Weak (5)
Neutral (9)
Resists (4)

It resists ground0.625xwater0.625xgrass0.625xelectric0.625x— bringing one of those is throwing damage away.

What Shroomish 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
grassBullet SeedSTAB	7	+13	1.0s	0.75s

Charged moves

Move	Power	Energy	Duration	Hits at
grassGrass KnotSTAB	90	-50	2.5s	1.60s
grassSeed BombSTAB	55	-33	2.0s	1.10s
grassEnergy BallSTAB	90	-50	4.0s	3.10s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
10/10/10floor	421	527
11/11/11	429	537
12/12/12	438	547
13/13/13	446	557
14/14/14	454	568
15/15/15hundo	463	578

Caught CP range 421 - 463, or 527 - 578 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.

Shroomish 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 1: 600 HP, 3:00 timer, boss Attack 53 / Defense 74 (15/15/15 at tier CPM 0.5974).

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	Win % (1)	CP	DPS	TDO
1	Mega Mewtwo X psychicfightingmega Psycho Cut / Dynamic Punch+	Psycho Cut / Dynamic Punch++26 more movesets	95%	5277.2%	0.05	0:08	100%	6,112	73.9	610
2	Mega Mewtwo Y psychicmega Psycho Cut / Future Sight+	Psycho Cut / Future Sight++26 more movesets	94%	5164.7%	0.05	0:08	100%	6,428	80.0	675
3	Mega Staraptor fightingflyingmega Sand Attack / Brave Bird+	Sand Attack / Brave Bird++19 more movesets	100%	5128.2%	0.05	0:09	100%	3,979	76.2	648
4	Blacephalon fireghost Incinerate / Mind Blown	Incinerate / Mind Blown+7 more movesets	77%	4844.4%	0.05	0:09	100%	3,297	72.5	652
5	Mega Blaziken firefightingmega Fire Spin / Blaze Kick	Fire Spin / Blaze Kick+20 more movesets	75%	4608.8%	0.05	0:09	100%	4,161	65.9	623
6	Mega Delphox firepsychicmega Fire Spin / Blast Burn	Fire Spin / Blast Burn+23 more movesets	80%	4608.8%	0.05	0:09	100%	4,783	74.9	708
7	Mega Charizard Y fireflyingmega Fire Spin / Blast Burn	Fire Spin / Blast Burn+29 more movesets	81%	4589.4%	0.05	0:09	100%	4,455	71.4	678
8	Shadow Blaziken firefightingshadow Fire Spin / Blast Burn	Fire Spin / Blast Burn+20 more movesets	70%	4589.4%	0.05	0:09	100%	2,848	65.3	620
9	Mega Beedrill bugpoisonmega Infestation / Fell Stinger+	Infestation / Fell Stinger++23 more movesets	77%	4540.6%	0.05	0:10	100%	3,383	87.1	836
10	Mega Heracross bugfightingmega Fury Cutter / Megahorn	Fury Cutter / Megahorn+17 more movesets	73%	4359.9%	0.06	0:10	100%	4,814	61.3	613
11	Shadow Salamence dragonflyingshadow Fire Fang / Fly	Fire Fang / Fly+20 more movesets	73%	4359.9%	0.06	0:10	100%	3,749	63.3	633
12	Shadow Moltres fireflyingshadow Fire Spin / Fly	Fire Spin / Fly+11 more movesets	73%	4359.9%	0.06	0:10	100%	3,465	63.6	636
13	Rayquaza dragonflying Air Slash / Dragon Ascent	Air Slash / Dragon Ascent+11 more movesets	75%	4257.7%	0.06	0:10	100%	3,835	66.0	675
14	Mega Rayquaza dragonflyingmega Air Slash / Breaking Swipe	Air Slash / Breaking Swipe+11 more movesets	75%	4241.1%	0.06	0:10	100%	5,713	60.7	623
15	Kyurem (White) dragonice Ice Fang / Blizzard	Ice Fang / Blizzard+17 more movesets	70%	4152.2%	0.06	0:10	100%	4,605	60.0	630
16	Shadow Heatran firesteelshadow Bug Bite / Magma Storm	Bug Bite / Magma Storm+11 more movesets	72%	4152.2%	0.06	0:10	100%	3,754	61.2	642
17	Mega Charizard X firedragonmega Fire Spin / Blast Burn	Fire Spin / Blast Burn+29 more movesets	72%	4152.2%	0.06	0:10	100%	3,850	59.5	625
18	Shadow Delphox firepsychicshadow Fire Spin / Blast Burn	Fire Spin / Blast Burn+20 more movesets	64%	4152.2%	0.06	0:10	100%	3,059	60.2	632
19	Shadow Charizard fireflyingshadow Fire Spin / Blast Burn	Fire Spin / Blast Burn+29 more movesets	67%	4152.2%	0.06	0:10	100%	2,889	58.6	615
20	Shadow Infernape firefightingshadow Fire Spin / Blast Burn	Fire Spin / Blast Burn+7 more movesets	62%	4152.2%	0.06	0:10	100%	2,683	58.4	613
21	Mega Victreebel grasspoisonmega Sucker Punch / Acid Spray+	Sucker Punch / Acid Spray++23 more movesets	73%	4116.1%	0.06	0:11	100%	3,505	69.5	736
22	Mega Pinsir bugflyingmega Fury Cutter / X-Scissor	Fury Cutter / X-Scissor+14 more movesets	69%	4044.3%	0.06	0:11	100%	4,182	57.2	617
23	Mega Salamence dragonflyingmega Fire Fang / Fly	Fire Fang / Fly+20 more movesets	70%	3963.4%	0.06	0:11	100%	5,031	56.6	622
24	Shadow Sneasler fightingpoisonshadow Poison Jab / X-Scissor	Poison Jab / X-Scissor+8 more movesets	59%	3963.4%	0.06	0:11	100%	3,222	54.9	604
25	Shadow Weavile darkiceshadow Ice Shard / Triple Axel	Ice Shard / Triple Axel+11 more movesets	55%	3963.4%	0.06	0:11	100%	3,005	54.7	602
26	Mega Pidgeot normalflyingmega Wing Attack / Brave Bird	Wing Attack / Brave Bird+27 more movesets	64%	3963.4%	0.06	0:11	100%	3,680	60.0	660
27	Shadow Staraptor normalflyingshadow Wing Attack / Brave Bird	Wing Attack / Brave Bird+15 more movesets	59%	3963.4%	0.06	0:11	100%	2,825	61.3	674
28	Shadow Honchkrow darkflyingshadow Snarl / Brave Bird	Snarl / Brave Bird+7 more movesets	59%	3963.4%	0.06	0:11	100%	2,711	55.2	607
29	Shadow Typhlosion fireshadow Incinerate / Blast Burn	Incinerate / Blast Burn+14 more movesets	60%	3963.4%	0.06	0:11	100%	2,889	57.1	628
30	Shadow Magmortar fireshadow Fire Spin / Fire Punch	Fire Spin / Fire Punch+11 more movesets	59%	3927.7%	0.06	0:11	100%	3,132	55.7	618

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