Not released in Pokemon GONo trainer can own this one yet.

Not obtainable in Pokemon GO as of 2026-10-03: PvPoke flags it released:false and onemorecatch.site lists the species as unavailable. It is left out of default counter lists, boss pickers, tools and the Pokebox; the numbers on this page are what the Game Master gives it.

List checked 2026-10-03. Source: Hand-checked list as of 2026-10-03 (PvPoke released flags, snapshot 2026-10-03 03:11:52, cross-checked with onemorecatch.site's unavailable list (updated 2026-10-02) and theclick.gg's Mega list (2026-09-16); PvP-only exclusions (Ditto, Shedinja, Spewpa, Cosmog, Cosmoem) and the stale Mega Camerupt flag corrected by hand); since 2026-10-05 maintained from official Pokemon GO news debuts and new Game Master species (no PvPoke download).

Arceus (Poison) counters

#0493Not released in Pokemon GO

poisonElite

Lobby CP

56,910

20,000

Timer

5:00

Attack

249

Defense

249

Difficulty

3.30

Pokebattler scale

Beating Arceus (Poison) should take 3 trainers with level 40 counters. Caught CP 2,190-2,279.

Weak toground1.6xpsychic1.6x

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 Psychic Mega — most top counters attack with Psychic

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 Arceus (Poison) counters are Mega Mewtwo Y, Shadow Mewtwo, Shadow Landorus (Therian), Mewtwo, Shadow Groudon & Shadow Regigigas.

Suggested party of sixat most one Mega

M. Mewtwo Y
S. Mewtwo
S. Landorus (Therian)
Mewtwo
S. Groudon
S. Regigigas

9 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 YMegaLegendarypartyPsycho Cut / Future Sight+2.3110:37
2Mega Mewtwo XMegaLegendaryPsycho Cut / Psystrike2.8313:02
3Shadow MewtwoShadowLegendarypartyPsycho Cut / Psystrike3.2715:03
4Primal GroudonMegaLegendaryMud Shot / Precipice Blades3.5816:28
5Mega AlakazamMegaConfusion / Psychic3.7917:27
6Shadow Landorus (Therian)ShadowLegendarypartyMud Shot / Sandsear Storm3.8517:43
7MewtwoLegendarypartyConfusion / Psystrike3.8717:50
8Mega GardevoirMegaConfusion / Psychic3.9818:19
9Mega MalamarMegaPsycho Cut / Psybeam+4.0018:23
10Shadow GroudonShadowLegendarypartyMud Shot / Precipice Blades4.0118:28
15Shadow RegigigasShadowLegendarypartyZen Headbutt / Crush Grip4.2019:20

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

Type a name, then Enter or click a result

Raid tier — Elite 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 Arceus (Poison) 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.

Trainers3small group

#	Attacker	Moveset
1	Mega Mewtwo Ypsychicjoint top pick	psychicPsycho CutpsychicFuture Sight+	6,428	10:37	2.31	6.0	47.7%
2	Mega Mewtwo Xpsychicfighting	psychicPsycho CutpsychicPsystrike	6,112	13:02	2.83	6.0	38.9%
3	Shadow Mewtwopsychic	psychicPsycho CutpsychicPsystrike	4,178	15:03	3.27	6.0	33.7%
4	Primal Groudongroundfire	groundMud ShotgroundPrecipice Blades	5,902	16:28	3.58	6.0	30.8%
5	Mega Alakazampsychic	psychicConfusionpsychicPsychic	4,510	17:27	3.79	6.0	29.0%
6	Shadow Landorus (Therian)groundflying	groundMud ShotgroundSandsear Storm	3,922	17:43	3.85	6.0	28.6%
7	Mewtwopsychic	psychicConfusionpsychicPsystrike	4,178	17:50	3.87	6.0	28.4%
8	Mega Gardevoirpsychicfairy	psychicConfusionpsychicPsychic	4,512	18:19	3.98	6.0	27.7%
9	Mega Malamardarkpsychic	psychicPsycho CutpsychicPsybeam+	3,143	18:23	4.00	5.7	27.6%
10	Shadow Groudonground	groundMud ShotgroundPrecipice Blades	4,115	18:28	4.01	6.0	27.5%
11	Mega Galladepsychicfighting	psychicPsycho CutpsychicPsychic	4,521	18:30	4.02	6.0	27.4%
12	Mega Delphoxfirepsychic	psychicZen HeadbuttpsychicPsychic	4,783	18:33	4.03	6.0	27.3%
13	Mega Latiosdragonpsychic	psychicZen HeadbuttpsychicPsychic	5,007	18:43	4.07	6.0	27.1%
14	Mega Garchompdragonground	groundMud ShotgroundEarth Power	5,424	18:49	4.09	6.0	26.9%
15	Shadow Regigigasnormal	psychicZen HeadbuttnormalCrush Grip	4,346	19:20	4.20	6.0	26.2%

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 Arceus (Poison).

Estimator is how many trainers of this strength the fight needs. Power is the share of Arceus (Poison)'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 % (3)	Overall	Power	Time to win	Faints	Estimator
Random (any moveset)showing	25%	33%	30.7%	16:31	6.0	3.59
Shadow Claw / Hyper Beam	24%	30%	30.3%	16:42	6.0	3.63
Shadow Claw / Outrage	18%	32%	30.5%	16:39	6.0	3.62
Iron Tail / Hyper Beam	21%	29%	30.5%	16:38	6.0	3.61
Shadow Claw / Future Sight	31%	38%	30.6%	16:33	6.0	3.60
Iron Tail / Future Sight	33%	37%	31.1%	16:19	6.0	3.55
Iron Tail / Outrage	25%	33%	31.3%	16:13	6.0	3.52

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 3 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…

Arceus (Poison) 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.

ground1.6x psychic1.6x normal1x flying1x rock1x ghost1x steel1x fire1x water1x electric1x ice1x dragon1x dark1x fighting0.63x poison0.63x bug0.63x grass0.63x fairy0.63x

Weak (2)
Neutral (11)
Resists (5)

It resists fighting0.625xpoison0.625xbug0.625xgrass0.625xfairy0.625x— bringing one of those is throwing damage away.

What Arceus (Poison) throws at you

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

Fast moves

Move	Power	Energy	Duration	Hits at
steelIron Tail	14	+6	1.0s	0.75s
ghostShadow Claw	6	+4	0.5s	0.05s

Charged moves

Move	Power	Energy	Duration	Hits at
psychicFuture Sight	115	-100	2.5s	1.20s
normalHyper Beam	150	-100	4.0s	3.50s
dragonOutrage	110	-50	4.0s	2.60s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
10/10/10floor	2,190	2,738
11/11/11	2,208	2,760
12/12/12	2,226	2,782
13/13/13	2,243	2,805
14/14/14	2,261	2,827
15/15/15hundo	2,279	2,850

Caught CP range 2,190 - 2,279, or 2,738 - 2,850 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.

Arceus (Poison) 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

Elite: 20,000 HP, 5:00 timer, boss Attack 249 / Defense 249 (15/15/15 at tier CPM 0.985).

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 % (3)	CP	DPS	TDO
1	Mega Mewtwo Y psychicmega Psycho Cut / Future Sight+	Psycho Cut / Future Sight++26 more movesets	100%	47.7%	2.31	10:37	23.3	100%	6,428	33.1	833
2	Mega Mewtwo X psychicfightingmega Psycho Cut / Psystrike	Psycho Cut / Psystrike+26 more movesets	78%	38.9%	2.83	13:02	33.0	100%	6,112	27.1	580
3	Shadow Mewtwo psychicshadow Psycho Cut / Psystrike	Psycho Cut / Psystrike+23 more movesets	65%	33.7%	3.27	15:03	46.8	44%	4,178	23.8	408
4	Primal Groudon groundfiremega Mud Shot / Precipice Blades	Mud Shot / Precipice Blades+9 more movesets	62%	30.8%	3.58	16:28	35.1	0%	5,902	21.3	537
5	Mega Alakazam psychicmega Confusion / Psychic	Confusion / Psychic+17 more movesets	55%	29.0%	3.79	17:27	57.4	0%	4,510	20.7	342
6	Shadow Landorus (Therian) groundflyingshadow Mud Shot / Sandsear Storm	Mud Shot / Sandsear Storm+9 more movesets	54%	28.6%	3.85	17:43	57.3	0%	3,922	20.3	336
7	Mewtwo psychic Confusion / Psystrike	Confusion / Psystrike+23 more movesets	55%	28.4%	3.87	17:50	50.2	0%	4,178	20.0	385
8	Mega Gardevoir psychicfairymega Confusion / Psychic	Confusion / Psychic+19 more movesets	54%	27.7%	3.98	18:19	45.1	0%	4,512	19.3	468
9	Mega Malamar darkpsychicmega Psycho Cut / Psybeam+	Psycho Cut / Psybeam++14 more movesets	55%	27.6%	4.00	18:23	36.7	0%	3,143	19.0	626
10	Shadow Groudon groundshadow Mud Shot / Precipice Blades	Mud Shot / Precipice Blades+9 more movesets	52%	27.5%	4.01	18:28	54.1	0%	4,115	19.4	351
11	Mega Gallade psychicfightingmega Psycho Cut / Psychic	Psycho Cut / Psychic+19 more movesets	52%	27.4%	4.02	18:30	55.3	0%	4,521	19.3	342
12	Mega Delphox firepsychicmega Zen Headbutt / Psychic	Zen Headbutt / Psychic+23 more movesets	53%	27.3%	4.03	18:33	46.0	0%	4,783	19.0	427
13	Mega Latios dragonpsychicmega Zen Headbutt / Psychic	Zen Headbutt / Psychic+9 more movesets	52%	27.1%	4.07	18:43	50.4	0%	5,007	19.0	396
14	Mega Garchomp dragongroundmega Mud Shot / Earth Power	Mud Shot / Earth Power+13 more movesets	52%	26.9%	4.09	18:49	50.9	0%	5,424	18.9	384
15	Shadow Regigigas normalshadow Zen Headbutt / Crush Grip	Zen Headbutt / Crush Grip+7 more movesets	50%	26.2%	4.20	19:20	58.1	0%	4,346	18.5	327
16	Mega Metagross steelpsychicmega Zen Headbutt / Psychic	Zen Headbutt / Psychic+15 more movesets	53%	26.1%	4.22	19:24	28.8	0%	4,911	17.8	675
17	Hoopa (Unbound) psychicdark Confusion / Psychic	Confusion / Psychic+5 more movesets	50%	26.0%	4.23	19:29	52.0	0%	4,006	18.2	442
18	Shadow Metagross steelpsychicshadow Zen Headbutt / Psychic	Zen Headbutt / Psychic+15 more movesets	51%	25.9%	4.26	19:35	41.6	0%	3,791	17.9	473
19	Shadow Excadrill groundsteelshadow Mud-Slap / Scorching Sands	Mud-Slap / Scorching Sands+14 more movesets	48%	25.4%	4.33	19:56	58.0	0%	3,244	17.9	330
20	Necrozma (Dusk Mane) psychicsteel Psycho Cut / Sunsteel Strike	Psycho Cut / Sunsteel Strike+14 more movesets	51%	25.3%	4.35	20:00	33.3	0%	4,099	17.3	577
21	Shadow Latios dragonpsychicshadow Zen Headbutt / Psychic	Zen Headbutt / Psychic+9 more movesets	47%	25.1%	4.39	20:13	68.7	0%	3,812	17.9	296
22	Shadow Garchomp dragongroundshadow Mud Shot / Earth Power	Mud Shot / Earth Power+13 more movesets	47%	24.9%	4.42	20:21	62.5	0%	3,962	17.6	308
23	Mega Staraptor fightingflyingmega Sand Attack / Brave Bird+	Sand Attack / Brave Bird++19 more movesets	47%	24.8%	4.43	20:24	60.3	0%	3,979	17.5	320
24	Mega Rayquaza dragonflyingmega Dragon Tail / Dragon Ascent	Dragon Tail / Dragon Ascent+11 more movesets	47%	24.8%	4.44	20:25	57.9	0%	5,713	17.5	332
25	Necrozma (Dawn Wings) psychicghost Psycho Cut / Moongeist Beam	Psycho Cut / Moongeist Beam+14 more movesets	48%	24.7%	4.45	20:30	42.9	0%	4,099	17.1	460
26	Mega Starmie waterpsychicmega Psywave / Liquidation+	Psywave / Liquidation++44 more movesets	46%	24.3%	4.54	20:53	56.0	0%	3,701	17.0	354
27	Shadow Landorus (Incarnate) groundflyingshadow Mud Shot / Earth Power	Mud Shot / Earth Power+7 more movesets	45%	24.2%	4.55	20:57	68.5	0%	3,588	17.2	282
28	Mega Latias dragonpsychicmega Zen Headbutt / Psychic	Zen Headbutt / Psychic+14 more movesets	46%	24.0%	4.59	21:06	52.4	0%	4,801	16.7	394
29	Landorus (Therian) groundflying Extrasensory / Sandsear Storm	Extrasensory / Sandsear Storm+9 more movesets	44%	23.7%	4.64	21:21	64.6	0%	3,922	16.8	294
30	Shadow Alakazam psychicshadow Psycho Cut / Psychic	Psycho Cut / Psychic+17 more movesets	42%	23.3%	4.72	21:44	97.2	0%	3,057	17.3	215

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