Shadow raid

Shadow Gyarados counters

#0130

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

22,595

4,000

Timer

3:00

Attack

191

Defense

152

Difficulty

0.79

Pokebattler scale

Beating Shadow Gyarados should take 1 trainer with level 40 counters. Caught CP 1,790-1,937.

Weak toelectric2.56xrock1.6x

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 an Electric Mega — most top counters attack with Electric

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 Gyarados counters are Mega Raichu Y, Shadow Thundurus (Therian), Shadow Raikou, Zeraora, Xurkitree & Thundurus (Therian).

Suggested party of sixat most one Mega

M. Raichu Y
S. Thundurus (Therian)
S. Raikou
Zeraora
Xurkitree
Thundurus (Therian)

3 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 Raichu YMegapartyThunder Shock / Zap Cannon+0.671:57
2Mega Raichu XMegaThunder Shock / Volt Tackle+0.712:05
3Shadow Thundurus (Therian)ShadowLegendarypartyVolt Switch / Wildbolt Storm0.792:19
4Shadow RaikouShadowLegendarypartyThunder Shock / Wild Charge0.862:31
5Mega Mewtwo YMegaLegendaryPsycho Cut / Thunderbolt0.862:32
6ZeraoraLegendarypartyVolt Switch / Plasma Fists0.872:32
7Mega ManectricMegaThunder Fang / Wild Charge0.892:37
8XurkitreeLegendarypartyThunder Shock / Discharge0.902:38
9Thundurus (Therian)LegendarypartyVolt Switch / Wildbolt Storm0.902:38
10ZekromLegendaryCharge Beam / Fusion Bolt0.912:40

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 — Easy Group Shadow 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 countersMega Gyarados

Raid alerts…

Top 15 Shadow Gyarados 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 Raichu Yelectricjoint top pick	electricThunder ShockelectricZap Cannon+	3,780	1:57	0.67	5.1	200.4%
2	Mega Raichu Xelectric	electricThunder ShockelectricVolt Tackle+	3,510	2:05	0.71	4.6	188.3%
3	Shadow Thundurus (Therian)electricflying	electricVolt SwitchelectricWildbolt Storm	3,659	2:19	0.79	5.6	169.0%
4	Shadow Raikouelectric	electricThunder ShockelectricWild Charge	3,452	2:31	0.86	5.4	155.2%
5	Mega Mewtwo Ypsychic	psychicPsycho CutelectricThunderbolt	6,428	2:32	0.86	4.6	154.9%
6	Zeraoraelectric	electricVolt SwitchelectricPlasma Fists	3,419	2:32	0.87	5.2	153.9%
7	Mega Manectricelectric	electricThunder FangelectricWild Charge	3,580	2:37	0.89	5.7	149.9%
8	Xurkitreeelectric	electricThunder ShockelectricDischarge	3,937	2:38	0.90	5.7	148.8%
9	Thundurus (Therian)electricflying	electricVolt SwitchelectricWildbolt Storm	3,659	2:38	0.90	5.5	148.7%
10	Zekromdragonelectric	electricCharge BeamelectricFusion Bolt	4,038	2:40	0.91	5.0	146.4%
11	Regielekielectric	electricThunder ShockelectricThunder Cage	2,803	2:41	0.91	6.0	146.2%
12	Shadow Zapdoselectricflying	electricThunder ShockelectricThunderbolt	3,527	2:41	0.91	5.6	146.2%
13	Shadow Electivireelectric	electricThunder ShockelectricWild Charge	3,079	2:41	0.92	6.0	145.5%
14	Mega Mewtwo Xpsychicfighting	psychicPsycho CutelectricThunderbolt	6,112	2:43	0.93	4.5	144.3%
15	Shadow Magnezoneelectricsteel	electricVolt SwitchelectricWild Charge	3,205	2:43	0.93	5.2	143.9%

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 Gyarados.

Estimator is how many trainers of this strength the fight needs. Power is the share of Shadow Gyarados'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	Faints	Estimator
Random (any moveset)showing	100%	71%	160.6%	2:26	5.5	0.83
Waterfall / Hydro Pump	88%	59%	147.5%	2:39	6.0	0.91
Bite / Hydro Pump	92%	64%	149.0%	2:38	5.9	0.90
Dragon Breath / Hydro Pump	92%	64%	149.0%	2:38	5.9	0.90
Bite / Outrage	100%	63%	156.8%	2:30	6.0	0.85
Dragon Breath / Outrage	100%	63%	156.8%	2:30	6.0	0.85
Waterfall / Outrage	100%	63%	157.6%	2:29	5.9	0.85
Waterfall / Crunch	100%	73%	161.2%	2:26	5.8	0.83
Bite / Crunch	100%	82%	166.8%	2:21	5.3	0.80
Dragon Breath / Crunch	100%	82%	166.8%	2:21	5.3	0.80
Waterfall / Twister	100%	88%	169.4%	2:19	5.0	0.79
Bite / Twister	100%	98%	175.3%	2:14	4.2	0.76
Dragon Breath / Twister	100%	98%	175.3%	2:14	4.2	0.76

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…

Gyarados 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.

electric2.56x rock1.6x normal1x flying1x poison1x ghost1x grass1x psychic1x ice1x dragon1x dark1x fairy1x fighting0.63x bug0.63x steel0.63x fire0.63x water0.63x ground0.39x

Double weak (1)
Weak (1)
Neutral (10)
Resists (6)

It resists ground0.39xfighting0.625xbug0.625xsteel0.625xfire0.625xwater0.625x— bringing one of those is throwing damage away.

What Gyarados throws at you

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

Fast moves

Move	Power	Energy	Duration	Hits at
waterWaterfallSTAB	13	+7	1.0s	0.75s
darkBite	6	+4	0.5s	0.30s
dragonDragon Breath	6	+4	0.5s	0.30s

Charged moves

Move	Power	Energy	Duration	Hits at
waterHydro PumpSTAB	135	-100	3.5s	1.10s
dragonOutrage	110	-50	4.0s	2.60s
darkCrunch	65	-33	3.0s	1.10s
dragonTwister	50	-33	3.0s	1.15s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
6/6/6floor	1,790	2,238
7/7/7	1,806	2,258
8/8/8	1,822	2,278
9/9/9	1,838	2,298
10/10/10	1,855	2,319
11/11/11	1,871	2,339
12/12/12	1,888	2,360
13/13/13	1,904	2,380
14/14/14	1,921	2,401
15/15/15hundo	1,937	2,422

Caught CP range 1,790 - 1,937, or 2,238 - 2,422 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 1,790, not at the 1,855 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 65 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.

Gyarados 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 3: 4,000 HP, 3:00 timer, boss Attack 191 / Defense 152 (15/15/15 at tier CPM 0.76).

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 % (1)	CP	DPS	TDO
1	Mega Raichu Y electricmega Thunder Shock / Zap Cannon+	Thunder Shock / Zap Cannon++35 more movesets	100%	200.4%	0.67	1:57	5.3	100%	3,780	36.4	658
2	Mega Raichu X electricmega Thunder Shock / Volt Tackle+	Thunder Shock / Volt Tackle++35 more movesets	96%	188.3%	0.71	2:05	4.7	100%	3,510	33.9	746
3	Shadow Thundurus (Therian) electricflyingshadow Volt Switch / Wildbolt Storm	Volt Switch / Wildbolt Storm+9 more movesets	82%	169.0%	0.79	2:19	6.5	100%	3,659	30.9	561
4	Shadow Raikou electricshadow Thunder Shock / Wild Charge	Thunder Shock / Wild Charge+9 more movesets	76%	155.2%	0.86	2:31	5.9	100%	3,452	27.5	599
5	Mega Mewtwo Y psychicmega Psycho Cut / Thunderbolt	Psycho Cut / Thunderbolt+26 more movesets	79%	154.9%	0.86	2:32	4.5	100%	6,428	27.1	752
6	Zeraora electric Volt Switch / Plasma Fists	Volt Switch / Plasma Fists+9 more movesets	76%	153.9%	0.87	2:32	5.4	100%	3,419	27.4	650
7	Mega Manectric electricmega Thunder Fang / Wild Charge	Thunder Fang / Wild Charge+14 more movesets	72%	149.9%	0.89	2:37	6.6	100%	3,580	26.8	541
8	Xurkitree electric Thunder Shock / Discharge	Thunder Shock / Discharge+7 more movesets	70%	148.8%	0.90	2:38	7.3	96%	3,937	26.8	507
9	Thundurus (Therian) electricflying Volt Switch / Wildbolt Storm	Volt Switch / Wildbolt Storm+9 more movesets	72%	148.7%	0.90	2:38	6.4	96%	3,659	26.8	564
10	Zekrom dragonelectric Charge Beam / Fusion Bolt	Charge Beam / Fusion Bolt+9 more movesets	72%	146.4%	0.91	2:40	5.4	96%	4,038	25.9	654
11	Regieleki electric Thunder Shock / Thunder Cage	Thunder Shock / Thunder Cage+11 more movesets	69%	146.2%	0.91	2:41	7.4	90%	2,803	26.9	486
12	Shadow Zapdos electricflyingshadow Thunder Shock / Thunderbolt	Thunder Shock / Thunderbolt+11 more movesets	70%	146.2%	0.91	2:41	6.4	100%	3,527	26.1	559
13	Shadow Electivire electricshadow Thunder Shock / Wild Charge	Thunder Shock / Wild Charge+9 more movesets	68%	145.5%	0.92	2:41	8.1	78%	3,079	26.7	464
14	Mega Mewtwo X psychicfightingmega Psycho Cut / Thunderbolt	Psycho Cut / Thunderbolt+26 more movesets	74%	144.3%	0.93	2:43	4.4	100%	6,112	25.3	772
15	Shadow Magnezone electricsteelshadow Volt Switch / Wild Charge	Volt Switch / Wild Charge+15 more movesets	70%	143.9%	0.93	2:43	6.0	90%	3,205	25.7	630
16	Shadow Thundurus (Incarnate) electricflyingshadow Thunder Shock / Thunder Punch	Thunder Shock / Thunder Punch+7 more movesets	62%	134.6%	0.99	2:54	8.6	74%	3,345	24.5	436
17	Mega Ampharos electricdragonmega Volt Switch / Zap Cannon	Volt Switch / Zap Cannon+15 more movesets	66%	134.4%	0.99	2:55	6.0	66%	4,245	24.0	592
18	Shadow Luxray electricshadow Spark / Wild Charge	Spark / Wild Charge+14 more movesets	61%	133.2%	1.00	2:56	8.9	74%	2,888	24.5	422
19	Shadow Vikavolt bugelectricshadow Volt Switch / Discharge	Volt Switch / Discharge+15 more movesets	61%	132.1%	1.01	2:58	8.9	70%	3,117	24.1	417
20	Raikou electric Thunder Shock / Wild Charge	Thunder Shock / Wild Charge+9 more movesets	64%	131.2%	1.02	2:59	5.7	60%	3,452	23.3	605
21	Electivire electric Thunder Shock / Wild Charge	Thunder Shock / Wild Charge+9 more movesets	59%	126.9%	1.05	3:05	7.9	48%	3,079	22.8	472
22	Shadow Alolan Golem rockelectricshadow Volt Switch / Wild Charge	Volt Switch / Wild Charge+8 more movesets	58%	126.5%	1.06	3:06	8.7	58%	2,949	23.0	448
23	Zapdos electricflying Thunder Shock / Thunderbolt	Thunder Shock / Thunderbolt+11 more movesets	60%	124.3%	1.08	3:09	6.4	4%	3,527	22.0	552
24	Shadow Manectric electricshadow Thunder Fang / Wild Charge	Thunder Fang / Wild Charge+14 more movesets	54%	123.9%	1.08	3:09	11.6	38%	2,340	23.0	327
25	Magnezone electricsteel Charge Beam / Wild Charge	Charge Beam / Wild Charge+15 more movesets	61%	123.6%	1.08	3:10	5.7	8%	3,205	21.8	630
26	Tapu Koko electricfairy Volt Switch / Thunderbolt	Volt Switch / Thunderbolt+9 more movesets	61%	121.8%	1.10	3:13	5.1	0%	3,168	21.3	752
27	Shadow Mewtwo psychicshadow Psycho Cut / Thunderbolt	Psycho Cut / Thunderbolt+23 more movesets	55%	120.8%	1.11	3:14	9.1	10%	4,178	22.0	420
28	Shadow Magneton electricsteelshadow Thunder Shock / Discharge	Thunder Shock / Discharge+19 more movesets	53%	118.1%	1.13	3:19	10.3	8%	2,485	21.5	378
29	Thundurus (Incarnate) electricflying Thunder Shock / Thunder Punch	Thunder Shock / Thunder Punch+7 more movesets	54%	116.4%	1.15	3:22	8.4	0%	3,345	20.9	435
30	Shadow Arcanine fireshadow Thunder Fang / Wild Charge	Thunder Fang / Wild Charge+27 more movesets	52%	115.0%	1.16	3:24	9.9	4%	3,029	21.0	396

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