Cosmoem counters

#0790

psychicTier 5

Lobby CP

13,547

15,000

Timer

5:00

Attack

Defense

203

Difficulty

1.98

Pokebattler scale

Beating Cosmoem should take 2 trainers with level 40 counters. Caught CP 421-467.

Weak tobug1.6xghost1.6xdark1.6x

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 Ghost Mega — most top counters attack with Ghost

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 Cosmoem counters are Mega Beedrill, Necrozma (Dawn Wings), Shadow Darkrai, Shadow Gengar, Shadow Chandelure & Shadow Absol.

Suggested party of sixat most one Mega

M. Beedrill
Necrozma (Dawn Wings)
S. Darkrai
S. Gengar
S. Chandelure
S. Absol

6 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 BeedrillMegapartyBug Bite / Fell Stinger+1.707:50
2Mega HoundoomMegaSnarl / Dark Pulse+1.858:32
3Necrozma (Dawn Wings)LegendarypartyShadow Claw / Moongeist Beam1.999:10
4Mega GengarMegaLick / Shadow Ball2.009:13
5Shadow DarkraiShadowLegendarypartySnarl / Foul Play2.099:37
6Shadow GengarShadowpartyLick / Shadow Ball2.149:51
7Mega AbsolMegaSnarl / Brutal Swing2.149:52
8Mega HeracrossMegaFury Cutter / Megahorn2.1710:00
9Shadow ChandelureShadowpartyHex / Shadow Ball2.1810:01
10Mega BanetteMegaShadow Claw / Shadow Ball2.2610:23
12Shadow AbsolShadowpartySnarl / Brutal Swing2.2810:29

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.

Search bosses

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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

Related countersShadow Cosmoem

Raid alerts…

Top 15 Cosmoem 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.

Trainers2duo

#	Attacker	Moveset
1	Mega Beedrillbugpoisonjoint top pick	bugBug BitebugFell Stinger+	3,383	7:50	1.70	2.0	64.7%
2	Mega Houndoomdarkfire	darkSnarldarkDark Pulse+	3,842	8:32	1.85	1.1	59.4%
3	Necrozma (Dawn Wings)psychicghost	ghostShadow ClawghostMoongeist Beam	4,099	9:10	1.99	0.2	55.3%
4	Mega Gengarghostpoison	ghostLickghostShadow Ball	4,336	9:13	2.00	1.0	55.0%
5	Shadow Darkraidark	darkSnarldarkFoul Play	3,739	9:37	2.09	1.8	52.7%
6	Shadow Gengarghostpoison	ghostLickghostShadow Ball	2,878	9:51	2.14	1.0	51.4%
7	Mega Absoldark	darkSnarldarkBrutal Swing	3,301	9:52	2.14	2.3	51.4%
8	Mega Heracrossbugfighting	bugFury CutterbugMegahorn	4,814	10:00	2.17	1.0	50.7%
9	Shadow Chandelureghostfire	ghostHexghostShadow Ball	3,268	10:01	2.18	1.0	50.6%
10	Mega Banetteghost	ghostShadow ClawghostShadow Ball	3,594	10:23	2.26	1.0	48.8%
11	Mega Mewtwo Ypsychic	psychicPsycho CutghostShadow Ball	6,428	10:28	2.27	1.0	48.4%
12	Shadow Absoldark	darkSnarldarkBrutal Swing	2,526	10:29	2.28	3.0	48.4%
13	Shadow Hydreigondarkdragon	darkBitedarkBrutal Swing	3,625	10:29	2.28	1.5	48.3%
14	Mega Tyranitarrockdark	darkBitedarkBrutal Swing	5,347	10:31	2.29	0.0	48.2%
15	Shadow Tyranitarrockdark	darkBitedarkBrutal Swing	3,834	10:34	2.30	1.0	48.0%

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 Cosmoem.

Estimator is how many trainers of this strength the fight needs. Power is the share of Cosmoem'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 % (2)	Overall	Power	Time to win	Faints	Estimator
Splash / Struggle	74%	325%	53.3%	9:30	1.5	2.06

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 2 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…

Cosmoem 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.

bug1.6x ghost1.6x dark1.6x normal1x flying1x poison1x ground1x rock1x steel1x fire1x water1x grass1x electric1x ice1x dragon1x fairy1x fighting0.63x psychic0.63x

Weak (3)
Neutral (13)
Resists (2)

It resists fighting0.625xpsychic0.625x— bringing one of those is throwing damage away.

What Cosmoem throws at you

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

Fast moves

Move	Power	Energy	Duration	Hits at
waterSplash	0	+17	1.5s	0.80s

Charged moves

Move	Power	Energy	Duration	Hits at
normalStruggle	35	-0	2.0s	1.00s

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	526
11/11/11	430	537
12/12/12	439	549
13/13/13	448	560
14/14/14	457	572
15/15/15hundo	467	583

Caught CP range 421 - 467, or 526 - 583 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.

Cosmoem 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 54 / Defense 203 (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 % (2)	CP	DPS	TDO
1	Mega Beedrill bugpoisonmega Bug Bite / Fell Stinger+	Bug Bite / Fell Stinger++23 more movesets	100%	64.7%	1.70	7:50	3.2	100%	3,383	32.2	3519
2	Mega Houndoom darkfiremega Snarl / Dark Pulse+	Snarl / Dark Pulse++17 more movesets	94%	59.4%	1.85	8:32	2.4	100%	3,842	29.5	4360
3	Necrozma (Dawn Wings) psychicghost Shadow Claw / Moongeist Beam	Shadow Claw / Moongeist Beam+14 more movesets	93%	55.3%	1.99	9:10	1.0	100%	4,099	27.4	7548
4	Mega Gengar ghostpoisonmega Lick / Shadow Ball	Lick / Shadow Ball+31 more movesets	90%	55.0%	2.00	9:13	1.9	100%	4,336	27.2	5009
5	Shadow Darkrai darkshadow Snarl / Foul Play	Snarl / Foul Play+14 more movesets	81%	52.7%	2.09	9:37	3.6	100%	3,739	26.1	3231
6	Shadow Gengar ghostpoisonshadow Lick / Shadow Ball	Lick / Shadow Ball+31 more movesets	82%	51.4%	2.14	9:51	2.2	100%	2,878	25.4	4657
7	Mega Absol darkmega Snarl / Brutal Swing	Snarl / Brutal Swing+9 more movesets	76%	51.4%	2.14	9:52	4.9	96%	3,301	25.4	2483
8	Mega Heracross bugfightingmega Fury Cutter / Megahorn	Fury Cutter / Megahorn+17 more movesets	79%	50.7%	2.17	9:60	2.9	48%	4,814	25.1	3762
9	Shadow Chandelure ghostfireshadow Hex / Shadow Ball	Hex / Shadow Ball+19 more movesets	82%	50.6%	2.18	10:01	1.9	46%	3,268	25.0	5006
10	Mega Banette ghostmega Shadow Claw / Shadow Ball	Shadow Claw / Shadow Ball+5 more movesets	80%	48.8%	2.26	10:23	1.9	0%	3,594	24.1	5007
11	Mega Mewtwo Y psychicmega Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+26 more movesets	77%	48.4%	2.27	10:28	2.3	0%	6,428	24.0	4552
12	Shadow Absol darkshadow Snarl / Brutal Swing	Snarl / Brutal Swing+9 more movesets	70%	48.4%	2.28	10:29	6.1	0%	2,526	24.2	2043
13	Shadow Hydreigon darkdragonshadow Bite / Brutal Swing	Bite / Brutal Swing+9 more movesets	74%	48.3%	2.28	10:29	3.6	0%	3,625	23.9	3153
14	Mega Tyranitar rockdarkmega Bite / Brutal Swing	Bite / Brutal Swing+15 more movesets	81%	48.2%	2.29	10:31	1.0	0%	5,347	23.8	7516
15	Shadow Tyranitar rockdarkshadow Bite / Brutal Swing	Bite / Brutal Swing+15 more movesets	77%	48.0%	2.30	10:34	1.9	0%	3,834	23.7	4981
16	Mega Mewtwo X psychicfightingmega Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+26 more movesets	75%	47.4%	2.32	10:42	2.5	0%	6,112	23.4	4204
17	Blacephalon fireghost Astonish / Shadow Ball	Astonish / Shadow Ball+7 more movesets	75%	46.9%	2.35	10:48	1.9	0%	3,297	23.2	4980
18	Mega Greninja waterdarkmega Feint Attack / Surf+	Feint Attack / Surf++17 more movesets	70%	45.8%	2.40	11:03	3.9	0%	3,784	22.7	2956
19	Pheromosa bugfighting Bug Bite / Bug Buzz	Bug Bite / Bug Buzz+7 more movesets	65%	45.6%	2.42	11:07	7.3	0%	2,842	22.8	1754
20	Shadow Giratina (Origin) ghostdragonshadow Shadow Claw / Shadow Force	Shadow Claw / Shadow Force+7 more movesets	78%	45.5%	2.42	11:09	1.0	0%	3,683	22.4	7506
21	Shadow Weavile darkiceshadow Snarl / Foul Play	Snarl / Foul Play+11 more movesets	67%	45.1%	2.44	11:14	4.8	0%	3,005	22.3	2514
22	Shadow Hisuian Typhlosion fireghostshadow Hex / Shadow Ball	Hex / Shadow Ball+9 more movesets	72%	45.1%	2.44	11:15	2.2	0%	2,994	22.3	4656
23	Shadow Vikavolt bugelectricshadow Bug Bite / X-Scissor	Bug Bite / X-Scissor+15 more movesets	66%	44.6%	2.47	11:22	5.0	0%	3,117	22.1	2439
24	Darkrai dark Snarl / Foul Play	Snarl / Foul Play+14 more movesets	68%	44.5%	2.47	11:23	3.8	0%	3,739	22.0	3035
25	Shadow Haunter ghostpoisonshadow Lick / Shadow Ball	Lick / Shadow Ball+14 more movesets	67%	44.1%	2.50	11:30	4.1	0%	1,963	21.8	2897
26	Mega Rayquaza dragonflyingmega Dragon Tail / Dragon Ascent	Dragon Tail / Dragon Ascent+11 more movesets	69%	43.8%	2.51	11:34	2.9	0%	5,713	21.7	3788
27	Gengar ghostpoison Lick / Shadow Ball	Lick / Shadow Ball+31 more movesets	70%	43.5%	2.53	11:39	1.9	0%	2,878	21.5	4979
28	Shadow Mewtwo psychicshadow Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+23 more movesets	65%	43.1%	2.56	11:46	4.0	0%	4,178	21.4	2956
29	Mega Alakazam psychicmega Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+17 more movesets	64%	43.0%	2.56	11:47	4.6	0%	4,510	21.3	2641
30	Kyurem (Black) dragonice Shadow Claw / Freeze Shock	Shadow Claw / Freeze Shock+11 more movesets	67%	42.9%	2.57	11:49	3.0	0%	4,605	21.2	3695

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