Regirock counters

#0377

rockElite

Lobby CP

49,384

20,000

Timer

5:00

Attack

191

Defense

319

Difficulty

4.00

Pokebattler scale

Beating Regirock should take 4 trainers with level 40 counters. Caught CP 1,703-1,784.

Weak tofighting1.6xground1.6xsteel1.6xwater1.6xgrass1.6x

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 Steel Mega — most top counters attack with Steel

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 Regirock counters are Mega Mewtwo X, Necrozma (Dusk Mane), Zamazenta (Crowned Shield), Zacian (Crowned Sword), Keldeo & Shadow Landorus (Therian).

Suggested party of sixat most one Mega

M. Mewtwo X
Necrozma (Dusk Mane)
Zamazenta (Crowned Shield)
Zacian (Crowned Sword)
Keldeo
S. Landorus (Therian)

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 XMegaLegendarypartyCounter / Dynamic Punch+3.2615:01
2Necrozma (Dusk Mane)LegendarypartyMetal Claw / Sunsteel Strike4.0118:27
3Zamazenta (Crowned Shield)LegendarypartyMetal Claw / Behemoth Bash4.0818:46
4Zacian (Crowned Sword)LegendarypartyMetal Claw / Behemoth Blade4.1018:52
5Mega Mewtwo YMegaLegendaryCounter / Future Sight+4.1719:11
6Mega BlazikenMegaCounter / Aura Sphere4.1919:17
7Mega LucarioMegaForce Palm / Aura Sphere4.2019:20
8Mega GalladeMegaLow Kick / Sacred Sword4.3419:59
9KeldeoLegendarypartyLow Kick / Secret Sword4.3520:02
10Mega StarmieMegaPsywave / Liquidation+4.3720:05
15Shadow Landorus (Therian)ShadowLegendarypartyMud Shot / Sandsear Storm4.5821:03

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 — 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 Regirock 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.

Trainers4small group

#	Attacker	Moveset
1	Mega Mewtwo Xpsychicfightingjoint top pick	fightingCounterfightingDynamic Punch+	6,112	15:01	3.26	6.0	33.7%
2	Necrozma (Dusk Mane)psychicsteel	steelMetal ClawsteelSunsteel Strike	4,099	18:27	4.01	6.0	27.5%
3	Zamazenta (Crowned Shield)fightingsteel	steelMetal ClawsteelBehemoth Bash	4,172	18:46	4.08	5.6	27.0%
4	Zacian (Crowned Sword)fairysteel	steelMetal ClawsteelBehemoth Blade	4,979	18:52	4.10	6.0	26.9%
5	Mega Mewtwo Ypsychic	fightingCounterpsychicFuture Sight+	6,428	19:11	4.17	6.0	26.4%
6	Mega Blazikenfirefighting	fightingCounterfightingAura Sphere	4,161	19:17	4.19	6.0	26.3%
7	Mega Lucariofightingsteel	fightingForce PalmfightingAura Sphere	3,826	19:20	4.20	6.0	26.2%
8	Mega Galladepsychicfighting	fightingLow KickfightingSacred Sword	4,521	19:59	4.34	6.0	25.4%
9	Keldeowaterfighting	fightingLow KickfightingSecret Sword	3,698	20:02	4.35	6.0	25.3%
10	Mega Starmiewaterpsychic	psychicPsywavewaterLiquidation+	3,701	20:05	4.37	6.0	25.2%
11	Primal Groudongroundfire	groundMud ShotgroundPrecipice Blades	5,902	20:17	4.41	5.5	25.0%
12	Mega Falinksfighting	fightingCounterfightingBrick Break+	3,670	20:28	4.45	6.0	24.8%
13	Mega Chesnaughtgrassfighting	fightingLow KickgrassSeed Bomb+	4,093	20:44	4.51	5.9	24.4%
14	Primal Kyogrewater	waterWaterfallwaterOrigin Pulse	5,902	20:48	4.52	6.0	24.4%
15	Shadow Landorus (Therian)groundflying	groundMud ShotgroundSandsear Storm	3,922	21:03	4.58	6.0	24.1%

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 Regirock.

Estimator is how many trainers of this strength the fight needs. Power is the share of Regirock'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 % (4)	Overall	Power	Time to win	Faints	Estimator
Random (any moveset)showing	74%	38%	27.1%	18:43	5.9	4.07
Rock Throw / Focus Blast	72%	36%	26.9%	18:52	6.0	4.10
Lock-On / Zap Cannon	65%	36%	26.9%	18:50	6.0	4.09
Rock Smash / Focus Blast	72%	37%	27.0%	18:46	6.0	4.08
Rock Throw / Zap Cannon	68%	35%	27.0%	18:45	6.0	4.08
Lock-On / Focus Blast	74%	39%	27.0%	18:45	6.0	4.07
Lock-On / Stone Edge	79%	53%	27.1%	18:43	5.7	4.07
Rock Smash / Zap Cannon	74%	36%	27.1%	18:40	6.0	4.06
Rock Smash / Stone Edge	79%	47%	27.2%	18:36	6.0	4.04
Rock Throw / Stone Edge	83%	50%	27.5%	18:25	5.7	4.00

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 4 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…

Regirock 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.

fighting1.6x ground1.6x steel1.6x water1.6x grass1.6x rock1x bug1x ghost1x electric1x psychic1x ice1x dragon1x dark1x fairy1x normal0.63x flying0.63x poison0.63x fire0.63x

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

It resists normal0.625xflying0.625xpoison0.625xfire0.625x— bringing one of those is throwing damage away.

What Regirock throws at you

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

Fast moves

Move	Power	Energy	Duration	Hits at
rockRock ThrowSTAB	13	+8	1.0s	0.60s
fightingRock Smash	17	+12	1.5s	0.75s
normalLock-On	2	+10	0.5s	0.37s

Charged moves

Move	Power	Energy	Duration	Hits at
rockStone EdgeSTAB	105	-100	2.5s	0.90s
electricZap Cannon	140	-100	3.5s	2.80s
fightingFocus Blast	140	-100	3.5s	3.00s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
10/10/10floor	1,703	2,129
11/11/11	1,719	2,149
12/12/12	1,735	2,169
13/13/13	1,751	2,190
14/14/14	1,768	2,210
15/15/15hundo	1,784	2,230

Caught CP range 1,703 - 1,784, or 2,129 - 2,230 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.

Regirock 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 191 / Defense 319 (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 % (4)	CP	DPS	TDO
1	Mega Mewtwo X psychicfightingmega Counter / Dynamic Punch+	Counter / Dynamic Punch++26 more movesets	100%	33.7%	3.26	15:01	24.6	100%	6,112	23.0	777
2	Necrozma (Dusk Mane) psychicsteel Metal Claw / Sunsteel Strike	Metal Claw / Sunsteel Strike+14 more movesets	78%	27.5%	4.01	18:27	36.1	98%	4,099	18.9	544
3	Zamazenta (Crowned Shield) fightingsteel Metal Claw / Behemoth Bash	Metal Claw / Behemoth Bash+7 more movesets	76%	27.0%	4.08	18:46	38.1	94%	4,172	18.6	618
4	Zacian (Crowned Sword) fairysteel Metal Claw / Behemoth Blade	Metal Claw / Behemoth Blade+7 more movesets	77%	26.9%	4.10	18:52	34.1	100%	4,979	18.4	566
5	Mega Mewtwo Y psychicmega Counter / Future Sight+	Counter / Future Sight++26 more movesets	75%	26.4%	4.17	19:11	35.0	100%	6,428	18.1	551
6	Mega Blaziken firefightingmega Counter / Aura Sphere	Counter / Aura Sphere+20 more movesets	71%	26.3%	4.19	19:17	58.3	94%	4,161	18.5	326
7	Mega Lucario fightingsteelmega Force Palm / Aura Sphere	Force Palm / Aura Sphere+23 more movesets	70%	26.2%	4.20	19:20	61.5	78%	3,826	18.7	398
8	Mega Gallade psychicfightingmega Low Kick / Sacred Sword	Low Kick / Sacred Sword+19 more movesets	71%	25.4%	4.34	19:59	43.2	76%	4,521	17.5	455
9	Keldeo waterfighting Low Kick / Secret Sword	Low Kick / Secret Sword+11 more movesets	70%	25.3%	4.35	20:02	47.4	48%	3,698	17.6	420
10	Mega Starmie waterpsychicmega Psywave / Liquidation+	Psywave / Liquidation++44 more movesets	70%	25.2%	4.37	20:05	44.0	38%	3,701	17.5	452
11	Primal Groudon groundfiremega Mud Shot / Precipice Blades	Mud Shot / Precipice Blades+9 more movesets	72%	25.0%	4.41	20:17	30.9	38%	5,902	17.0	675
12	Mega Falinks fightingmega Counter / Brick Break+	Counter / Brick Break++7 more movesets	68%	24.8%	4.45	20:28	46.9	46%	3,670	17.2	425
13	Mega Chesnaught grassfightingmega Low Kick / Seed Bomb+	Low Kick / Seed Bomb++20 more movesets	71%	24.4%	4.51	20:44	29.3	2%	4,093	16.6	667
14	Primal Kyogre watermega Waterfall / Origin Pulse	Waterfall / Origin Pulse+5 more movesets	67%	24.4%	4.52	20:48	49.3	28%	5,902	16.9	408
15	Shadow Landorus (Therian) groundflyingshadow Mud Shot / Sandsear Storm	Mud Shot / Sandsear Storm+9 more movesets	66%	24.1%	4.58	21:03	47.4	8%	3,922	16.7	415
16	Mega Greninja waterdarkmega Water Shuriken / Surf+	Water Shuriken / Surf++17 more movesets	62%	23.6%	4.66	21:28	77.1	38%	3,784	17.1	266
17	Shadow Groudon groundshadow Mud Shot / Precipice Blades	Mud Shot / Precipice Blades+9 more movesets	65%	23.3%	4.74	21:48	41.8	0%	4,115	16.0	497
18	Mega Metagross steelpsychicmega Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	65%	22.9%	4.80	22:05	39.1	0%	4,911	15.7	498
19	Mega Garchomp dragongroundmega Mud Shot / Earth Power	Mud Shot / Earth Power+13 more movesets	66%	22.9%	4.81	22:09	29.4	0%	5,424	15.5	755
20	Mega Sceptile grassdragonmega Fury Cutter / Frenzy Plant	Fury Cutter / Frenzy Plant+11 more movesets	62%	22.8%	4.83	22:13	56.4	0%	4,056	15.9	375
21	Shadow Metagross steelpsychicshadow Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	61%	22.7%	4.86	22:22	57.3	0%	3,791	15.8	349
22	Mega Swampert watergroundmega Water Gun / Hydro Cannon	Water Gun / Hydro Cannon+11 more movesets	64%	22.5%	4.90	22:32	38.4	0%	4,401	15.4	499
23	Mega Latios dragonpsychicmega Dragon Breath / Aura Sphere	Dragon Breath / Aura Sphere+9 more movesets	61%	21.8%	5.05	23:14	41.7	0%	5,007	15.0	459
24	Shadow Kyogre watershadow Waterfall / Origin Pulse	Waterfall / Origin Pulse+5 more movesets	57%	21.5%	5.11	23:32	68.7	0%	4,115	15.2	280
25	Shadow Conkeldurr fightingshadow Force Palm / Dynamic Punch	Force Palm / Dynamic Punch+11 more movesets	57%	21.4%	5.15	23:43	65.6	0%	3,337	15.0	298
26	Shadow Gallade psychicfightingshadow Low Kick / Sacred Sword	Low Kick / Sacred Sword+19 more movesets	57%	21.4%	5.16	23:44	63.7	0%	3,093	14.9	305
27	Terrakion rockfighting Double Kick / Sacred Sword	Double Kick / Sacred Sword+11 more movesets	57%	21.2%	5.20	23:57	62.8	0%	3,698	14.8	321
28	Shadow Garchomp dragongroundshadow Mud Shot / Earth Power	Mud Shot / Earth Power+13 more movesets	59%	21.1%	5.21	23:59	43.8	0%	3,962	14.5	535
29	Shadow Latios dragonpsychicshadow Dragon Breath / Aura Sphere	Dragon Breath / Aura Sphere+9 more movesets	57%	21.0%	5.25	24:10	57.9	0%	3,812	14.6	341
30	Mega Heracross bugfightingmega Counter / Close Combat	Counter / Close Combat+17 more movesets	57%	20.8%	5.30	24:24	53.3	0%	4,814	14.4	366

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