Shadow raid

Shadow Duosion counters

#0578

psychicShadow Tier 5

A Shadow raid boss hits harder than its normal form (Shadow Frenzy), and the Pokemon you catch afterwards is a Shadow. Purified Gems weaken it mid-fight; the simulation does not use them.

Lobby CP

29,668

15,000

Timer

5:00

Attack

182

Defense

Difficulty

1.75

Pokebattler scale

Beating Shadow Duosion should take 2 trainers with level 40 counters. Caught CP 1,036-1,153.

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 Dark Mega — most top counters attack with Dark

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 Shadow Duosion counters are Mega Houndoom, Necrozma (Dawn Wings), Shadow Darkrai, Shadow Hydreigon, Shadow Tyranitar & Shadow Absol.

Suggested party of sixat most one Mega

M. Houndoom
Necrozma (Dawn Wings)
S. Darkrai
S. Hydreigon
S. Tyranitar
S. Absol

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 HoundoomMegapartySnarl / Dark Pulse+1.537:15
2Mega BeedrillMegaBug Bite / Fell Stinger+1.647:45
3Necrozma (Dawn Wings)LegendarypartyPsycho Cut / Moongeist Beam1.788:26
4Shadow DarkraiShadowLegendarypartySnarl / Foul Play1.828:36
5Mega Mewtwo YMegaLegendaryPsycho Cut / Shadow Ball1.858:43
6Mega AbsolMegaSnarl / Brutal Swing1.868:46
7Mega GengarMegaLick / Shadow Ball1.868:48
8Mega TyranitarMegaBite / Brutal Swing1.908:59
9Shadow HydreigonShadowpartyBite / Brutal Swing1.919:01
10Shadow TyranitarShadowpartyBite / Brutal Swing1.939:06
13Shadow AbsolShadowpartySnarl / Brutal Swing2.049:38

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

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

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Raid tier — Shadow 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 Shadow Duosion 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 Houndoomdarkfirejoint top pick	darkSnarldarkDark Pulse+	3,842	7:15	1.53	5.9	73.6%
2	Mega Beedrillbugpoison	bugBug BitebugFell Stinger+	3,383	7:45	1.64	6.0	68.9%
3	Necrozma (Dawn Wings)psychicghost	psychicPsycho CutghostMoongeist Beam	4,099	8:26	1.78	6.0	63.3%
4	Shadow Darkraidark	darkSnarldarkFoul Play	3,739	8:36	1.82	6.0	62.0%
5	Mega Mewtwo Ypsychic	psychicPsycho CutghostShadow Ball	6,428	8:43	1.85	5.9	61.2%
6	Mega Absoldark	darkSnarldarkBrutal Swing	3,301	8:46	1.86	6.0	60.8%
7	Mega Gengarghostpoison	ghostLickghostShadow Ball	4,336	8:48	1.86	6.0	60.5%
8	Mega Tyranitarrockdark	darkBitedarkBrutal Swing	5,347	8:59	1.90	4.2	59.3%
9	Shadow Hydreigondarkdragon	darkBitedarkBrutal Swing	3,625	9:01	1.91	5.9	59.1%
10	Shadow Tyranitarrockdark	darkBitedarkBrutal Swing	3,834	9:06	1.93	5.6	58.6%
11	Mega Heracrossbugfighting	bugFury CutterbugMegahorn	4,814	9:14	1.96	6.0	57.7%
12	Mega Mewtwo Xpsychicfighting	psychicPsycho CutghostShadow Ball	6,112	9:21	1.98	6.0	57.1%
13	Shadow Absoldark	darkSnarldarkBrutal Swing	2,526	9:38	2.04	6.0	55.3%
14	Shadow Chandelureghostfire	ghostHexghostShadow Ball	3,268	9:39	2.04	6.0	55.2%
15	Shadow Giratina (Origin)ghostdragon	ghostShadow ClawghostShadow Force	3,683	9:50	2.08	6.0	54.2%

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 Shadow Duosion.

Estimator is how many trainers of this strength the fight needs. Power is the share of Shadow Duosion'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
Random (any moveset)showing	96%	87%	61.4%	8:41	5.9	1.84
Hidden Power / Thunder	83%	69%	59.1%	9:01	6.0	1.91
Zen Headbutt / Thunder	92%	73%	60.7%	8:47	6.0	1.86
Zen Headbutt / Night Shade	99%	96%	61.0%	8:44	6.0	1.85
Hidden Power / Night Shade	100%	89%	61.3%	8:42	6.0	1.84
Hidden Power / Psyshock	100%	117%	62.9%	8:28	5.8	1.79
Zen Headbutt / Psyshock	100%	129%	63.4%	8:25	5.6	1.78

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…

Duosion 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 Duosion throws at you

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

Fast moves

Move	Power	Energy	Duration	Hits at
psychicZen HeadbuttSTAB	11	+9	1.0s	0.75s
normalHidden Power	15	+15	1.5s	1.10s

Charged moves

Move	Power	Energy	Duration	Hits at
electricThunder	100	-100	2.5s	1.30s
psychicPsyshockSTAB	60	-33	2.5s	1.80s
ghostNight Shade	60	-50	2.5s	2.00s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
6/6/6floor	1,036	1,295
7/7/7	1,049	1,311
8/8/8	1,062	1,327
9/9/9	1,074	1,343
10/10/10	1,087	1,359
11/11/11	1,100	1,376
12/12/12	1,113	1,392
13/13/13	1,126	1,408
14/14/14	1,140	1,425
15/15/15hundo	1,153	1,441

Caught CP range 1,036 - 1,153, or 1,295 - 1,441 when the weather boosts it.

A raid encounter is level 20 (level 25 weather boosted) and cannot roll an IV below 6/6/6 — a Shadow raid's floor is 6, not the usual 10. Anything outside the first range is not this raid's reward.

Shadow raid floor. A Shadow Raid encounter rolls a minimum of 6/6/6, so this band starts at 1,036, not at the 1,087 a 10/10/10 catch would give. pokebattler.com's own page for a Shadow boss prints that 10/10/10 value as its floor — it is applying the standard-raid rule — so expect its range to start 51 CP higher than this one. LeekDuck's published band agrees with the table above.

When it is in raids

From the raid schedule, refreshed daily.

Duosion 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

Shadow Tier 5: 15,000 HP, 5:00 timer, boss Attack 182 / Defense 96 (15/15/15 at tier CPM 0.82).

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 Houndoom darkfiremega Snarl / Dark Pulse+	Snarl / Dark Pulse++17 more movesets	100%	73.6%	1.53	7:15	11.2	100%	3,842	35.7	1306
2	Mega Beedrill bugpoisonmega Bug Bite / Fell Stinger+	Bug Bite / Fell Stinger++23 more movesets	86%	68.9%	1.64	7:45	25.5	100%	3,383	34.8	573
3	Necrozma (Dawn Wings) psychicghost Psycho Cut / Moongeist Beam	Psycho Cut / Moongeist Beam+14 more movesets	82%	63.3%	1.78	8:26	17.4	100%	4,099	31.3	999
4	Shadow Darkrai darkshadow Snarl / Foul Play	Snarl / Foul Play+14 more movesets	80%	62.0%	1.82	8:36	17.4	100%	3,739	30.4	891
5	Mega Mewtwo Y psychicmega Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+26 more movesets	81%	61.2%	1.85	8:43	14.5	100%	6,428	29.7	1006
6	Mega Absol darkmega Snarl / Brutal Swing	Snarl / Brutal Swing+9 more movesets	77%	60.8%	1.86	8:46	21.4	100%	3,301	30.1	725
7	Mega Gengar ghostpoisonmega Lick / Shadow Ball	Lick / Shadow Ball+31 more movesets	74%	60.5%	1.86	8:48	28.2	100%	4,336	30.5	511
8	Mega Tyranitar rockdarkmega Bite / Brutal Swing	Bite / Brutal Swing+15 more movesets	82%	59.3%	1.90	8:59	9.0	100%	5,347	28.4	1675
9	Shadow Hydreigon darkdragonshadow Bite / Brutal Swing	Bite / Brutal Swing+9 more movesets	78%	59.1%	1.91	9:01	14.1	100%	3,625	28.6	1010
10	Shadow Tyranitar rockdarkshadow Bite / Brutal Swing	Bite / Brutal Swing+15 more movesets	78%	58.6%	1.93	9:06	13.3	100%	3,834	28.3	1138
11	Mega Heracross bugfightingmega Fury Cutter / Megahorn	Fury Cutter / Megahorn+17 more movesets	73%	57.7%	1.96	9:14	21.9	100%	4,814	28.6	671
12	Mega Mewtwo X psychicfightingmega Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+26 more movesets	74%	57.1%	1.98	9:21	17.9	100%	6,112	28.0	783
13	Shadow Absol darkshadow Snarl / Brutal Swing	Snarl / Brutal Swing+9 more movesets	67%	55.3%	2.04	9:38	30.9	80%	2,526	28.0	526
14	Shadow Chandelure ghostfireshadow Hex / Shadow Ball	Hex / Shadow Ball+19 more movesets	67%	55.2%	2.04	9:39	30.8	80%	3,268	27.9	472
15	Shadow Giratina (Origin) ghostdragonshadow Shadow Claw / Shadow Force	Shadow Claw / Shadow Force+7 more movesets	70%	54.2%	2.08	9:50	18.5	72%	3,683	26.5	798
16	Mega Banette ghostmega Shadow Claw / Shadow Ball	Shadow Claw / Shadow Ball+5 more movesets	66%	54.2%	2.08	9:50	30.1	76%	3,594	27.3	483
17	Shadow Weavile darkiceshadow Snarl / Foul Play	Snarl / Foul Play+11 more movesets	69%	54.1%	2.09	9:51	21.7	68%	3,005	26.6	706
18	Mega Rayquaza dragonflyingmega Dragon Tail / Dragon Ascent	Dragon Tail / Dragon Ascent+11 more movesets	70%	54.1%	2.09	9:51	17.7	82%	5,713	26.4	788
19	Darkrai dark Snarl / Foul Play	Snarl / Foul Play+14 more movesets	68%	52.8%	2.14	10:05	17.7	56%	3,739	25.7	882
20	Shadow Regigigas normalshadow Hidden Power / Crush Grip	Hidden Power / Crush Grip+7 more movesets	68%	52.8%	2.14	10:06	19.0	40%	4,346	25.8	828
21	Mega Greninja waterdarkmega Feint Attack / Surf+	Feint Attack / Surf++17 more movesets	67%	52.1%	2.16	10:14	19.8	54%	3,784	25.5	836
22	Shadow Vikavolt bugelectricshadow Bug Bite / X-Scissor	Bug Bite / X-Scissor+15 more movesets	64%	52.1%	2.17	10:14	29.2	2%	3,117	26.0	486
23	Shadow Salamence dragonflyingshadow Bite / Brutal Swing	Bite / Brutal Swing+20 more movesets	64%	52.0%	2.17	10:15	27.7	20%	3,749	25.9	521
24	Mega Pinsir bugflyingmega Bug Bite / X-Scissor	Bug Bite / X-Scissor+14 more movesets	64%	51.6%	2.19	10:20	25.3	0%	4,182	25.5	582
25	Shadow Gengar ghostpoisonshadow Lick / Shadow Ball	Lick / Shadow Ball+31 more movesets	60%	51.3%	2.20	10:23	44.4	50%	2,878	26.9	356
26	Shadow Mewtwo psychicshadow Psycho Cut / Shadow Ball	Psycho Cut / Shadow Ball+23 more movesets	63%	50.7%	2.22	10:30	26.1	0%	4,178	25.2	570
27	Kyurem (Black) dragonice Shadow Claw / Freeze Shock	Shadow Claw / Freeze Shock+11 more movesets	65%	50.7%	2.23	10:31	18.0	0%	4,605	24.7	776
28	Mega Salamence dragonflyingmega Bite / Brutal Swing	Bite / Brutal Swing+20 more movesets	65%	50.5%	2.24	10:34	17.6	0%	5,031	24.5	801
29	Lunala psychicghost Shadow Claw / Shadow Ball	Shadow Claw / Shadow Ball+11 more movesets	64%	50.3%	2.25	10:36	20.6	0%	4,042	24.6	795
30	Shadow Houndoom darkfireshadow Snarl / Foul Play	Snarl / Foul Play+14 more movesets	62%	50.0%	2.26	10:39	25.0	0%	2,635	24.7	604

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 (its Shadow boss page; the ordinary boss's page is a different, easier fight). Boss-by-boss accuracy report.

Ranked 30 attackers in 1.0 s (50 Monte Carlo runs each, seed 1). Same boss on pokebattler.com. The same ranking as JSON: /api/raids/rank.