Regirock counters

#0377

rockTier 5

Lobby CP

42,768

15,000

Timer

5:00

Attack

153

Defense

255

Difficulty

2.30

Pokebattler scale

Beating Regirock should take 2 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, Zacian (Crowned Sword), Zamazenta (Crowned Shield), Necrozma (Dusk Mane), Keldeo & Shadow Landorus (Therian).

Suggested party of sixat most one Mega

M. Mewtwo X
Zacian (Crowned Sword)
Zamazenta (Crowned Shield)
Necrozma (Dusk Mane)
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+1.918:46
2Zacian (Crowned Sword)LegendarypartyMetal Claw / Behemoth Blade2.2810:30
3Zamazenta (Crowned Shield)LegendarypartyMetal Claw / Behemoth Bash2.3710:55
4Mega LucarioMegaForce Palm / Aura Sphere2.3810:57
5Necrozma (Dusk Mane)LegendarypartyMetal Claw / Sunsteel Strike2.3911:00
6Mega BlazikenMegaCounter / Aura Sphere2.4011:03
7Mega FalinksMegaCounter / Brick Break+2.4611:18
8Mega StarmieMegaPsywave / Liquidation+2.4911:27
9Mega GreninjaMegaWater Shuriken / Surf+2.4911:28
10Mega Mewtwo YMegaLegendaryCounter / Future Sight+2.5411:41
14KeldeoLegendarypartyLow Kick / Secret Sword2.6312:07
15Shadow Landorus (Therian)ShadowLegendarypartyMud Shot / Sandsear Storm2.6412:10

More orders under All settings (Sort by). The top 15 in detail.

Build and order a party of six →Plan your raid lobby →

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

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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 Regirock

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.

Trainers2duo

#	Attacker	Moveset
1	Mega Mewtwo Xpsychicfightingjoint top pick	fightingCounterfightingDynamic Punch+	6,112	8:46	1.91	5.6	57.8%
2	Zacian (Crowned Sword)fairysteel	steelMetal ClawsteelBehemoth Blade	4,979	10:30	2.28	5.9	48.2%
3	Zamazenta (Crowned Shield)fightingsteel	steelMetal ClawsteelBehemoth Bash	4,172	10:55	2.37	5.3	46.4%
4	Mega Lucariofightingsteel	fightingForce PalmfightingAura Sphere	3,826	10:57	2.38	6.0	46.3%
5	Necrozma (Dusk Mane)psychicsteel	steelMetal ClawsteelSunsteel Strike	4,099	11:00	2.39	6.0	46.1%
6	Mega Blazikenfirefighting	fightingCounterfightingAura Sphere	4,161	11:03	2.40	6.0	45.8%
7	Mega Falinksfighting	fightingCounterfightingBrick Break+	3,670	11:18	2.46	6.0	44.8%
8	Mega Starmiewaterpsychic	psychicPsywavewaterLiquidation+	3,701	11:27	2.49	6.0	44.3%
9	Mega Greninjawaterdark	waterWater ShurikenwaterSurf+	3,784	11:28	2.49	6.0	44.2%
10	Mega Mewtwo Ypsychic	fightingCounterpsychicFuture Sight+	6,428	11:41	2.54	5.8	43.4%
11	Primal Kyogrewater	waterWaterfallwaterOrigin Pulse	5,902	11:56	2.59	6.0	42.5%
12	Primal Groudongroundfire	groundMud ShotgroundPrecipice Blades	5,902	12:01	2.61	5.2	42.2%
13	Mega Galladepsychicfighting	fightingLow KickfightingSacred Sword	4,521	12:04	2.62	6.0	42.0%
14	Keldeowaterfighting	fightingLow KickfightingSecret Sword	3,698	12:07	2.63	6.0	41.9%
15	Shadow Landorus (Therian)groundflying	groundMud ShotgroundSandsear Storm	3,922	12:10	2.64	6.0	41.7%

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 % (2)	Overall	Power	Time to win	Faints	Estimator
Random (any moveset)showing	17%	80%	46.5%	10:54	5.8	2.37
Lock-On / Zap Cannon	17%	73%	45.6%	11:07	6.0	2.41
Rock Throw / Zap Cannon	17%	71%	45.8%	11:04	6.0	2.40
Rock Smash / Zap Cannon	17%	72%	46.0%	11:01	6.0	2.39
Lock-On / Focus Blast	17%	79%	46.3%	10:57	5.9	2.38
Rock Smash / Focus Blast	17%	80%	46.6%	10:53	5.9	2.37
Rock Throw / Focus Blast	17%	79%	46.6%	10:53	5.9	2.36
Rock Throw / Stone Edge	21%	104%	46.8%	10:50	5.4	2.35
Lock-On / Stone Edge	19%	113%	47.1%	10:46	5.1	2.34
Rock Smash / Stone Edge	17%	97%	47.2%	10:44	5.7	2.33

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…

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

Tier 5: 15,000 HP, 5:00 timer, boss Attack 153 / Defense 255 (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 Mewtwo X psychicfightingmega Counter / Dynamic Punch+	Counter / Dynamic Punch++26 more movesets	100%	57.8%	1.91	8:46	10.8	100%	6,112	29.2	1277
2	Zacian (Crowned Sword) fairysteel Metal Claw / Behemoth Blade	Metal Claw / Behemoth Blade+7 more movesets	80%	48.2%	2.28	10:30	15.7	2%	4,979	24.7	914
3	Zamazenta (Crowned Shield) fightingsteel Metal Claw / Behemoth Bash	Metal Claw / Behemoth Bash+7 more movesets	77%	46.4%	2.37	10:55	16.2	0%	4,172	23.7	993
4	Mega Lucario fightingsteelmega Force Palm / Aura Sphere	Force Palm / Aura Sphere+23 more movesets	73%	46.3%	2.38	10:57	26.7	0%	3,826	24.2	614
5	Necrozma (Dusk Mane) psychicsteel Metal Claw / Sunsteel Strike	Metal Claw / Sunsteel Strike+14 more movesets	76%	46.1%	2.39	10:60	16.9	0%	4,099	23.6	842
6	Mega Blaziken firefightingmega Counter / Aura Sphere	Counter / Aura Sphere+20 more movesets	72%	45.8%	2.40	11:03	26.9	0%	4,161	23.9	522
7	Mega Falinks fightingmega Counter / Brick Break+	Counter / Brick Break++7 more movesets	73%	44.8%	2.46	11:18	19.4	0%	3,670	23.0	733
8	Mega Starmie waterpsychicmega Psywave / Liquidation+	Psywave / Liquidation++44 more movesets	72%	44.3%	2.49	11:27	20.9	0%	3,701	22.8	703
9	Mega Greninja waterdarkmega Water Shuriken / Surf+	Water Shuriken / Surf++17 more movesets	68%	44.2%	2.49	11:28	31.3	0%	3,784	23.2	460
10	Mega Mewtwo Y psychicmega Counter / Future Sight+	Counter / Future Sight++26 more movesets	72%	43.4%	2.54	11:41	16.5	0%	6,428	22.1	852
11	Primal Kyogre watermega Waterfall / Origin Pulse	Waterfall / Origin Pulse+5 more movesets	69%	42.5%	2.59	11:56	19.7	0%	5,902	21.7	720
12	Primal Groudon groundfiremega Mud Shot / Precipice Blades	Mud Shot / Precipice Blades+9 more movesets	71%	42.2%	2.61	12:01	14.3	0%	5,902	21.4	1050
13	Mega Gallade psychicfightingmega Low Kick / Sacred Sword	Low Kick / Sacred Sword+19 more movesets	68%	42.0%	2.62	12:04	20.7	0%	4,521	21.5	684
14	Keldeo waterfighting Low Kick / Secret Sword	Low Kick / Secret Sword+11 more movesets	66%	41.9%	2.63	12:07	24.9	0%	3,698	21.6	613
15	Shadow Landorus (Therian) groundflyingshadow Mud Shot / Sandsear Storm	Mud Shot / Sandsear Storm+9 more movesets	67%	41.7%	2.64	12:10	22.7	0%	3,922	21.5	628
16	Mega Chesnaught grassfightingmega Vine Whip / Seed Bomb+	Vine Whip / Seed Bomb++20 more movesets	70%	41.2%	2.67	12:18	13.6	0%	4,093	20.9	1028
17	Mega Sceptile grassdragonmega Fury Cutter / Frenzy Plant	Fury Cutter / Frenzy Plant+11 more movesets	64%	40.4%	2.73	12:34	25.9	0%	4,056	20.9	593
18	Shadow Metagross steelpsychicshadow Fury Cutter / Meteor Mash	Fury Cutter / Meteor Mash+15 more movesets	63%	39.8%	2.76	12:43	25.6	0%	3,791	20.6	563
19	Shadow Groudon groundshadow Mud Shot / Precipice Blades	Mud Shot / Precipice Blades+9 more movesets	65%	39.7%	2.77	12:46	18.3	0%	4,115	20.3	809
20	Shadow Blaziken firefightingshadow Counter / Aura Sphere	Counter / Aura Sphere+20 more movesets	60%	39.5%	2.79	12:49	38.3	0%	2,848	20.9	368
21	Mega Metagross steelpsychicmega Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	64%	39.0%	2.83	13:00	18.5	0%	4,911	19.8	762
22	Mega Garchomp dragongroundmega Mud Shot / Earth Power	Mud Shot / Earth Power+13 more movesets	64%	38.1%	2.89	13:18	13.9	0%	5,424	19.2	1169
23	Mega Swampert watergroundmega Water Gun / Hydro Cannon	Water Gun / Hydro Cannon+11 more movesets	61%	37.6%	2.93	13:29	18.7	0%	4,401	19.1	756
24	Shadow Kyogre watershadow Waterfall / Origin Pulse	Waterfall / Origin Pulse+5 more movesets	58%	37.6%	2.93	13:29	32.3	0%	4,115	19.6	447
25	Shadow Conkeldurr fightingshadow Force Palm / Dynamic Punch	Force Palm / Dynamic Punch+11 more movesets	56%	36.3%	3.03	13:58	33.6	0%	3,337	18.9	439
26	Mega Heracross bugfightingmega Counter / Close Combat	Counter / Close Combat+17 more movesets	57%	36.0%	3.06	14:04	24.5	0%	4,814	18.5	587
27	Shadow Dialga steeldragonshadow Metal Claw / Iron Head	Metal Claw / Iron Head+5 more movesets	56%	36.0%	3.06	14:04	29.7	0%	4,038	18.6	512
28	Shadow Gallade psychicfightingshadow Low Kick / Sacred Sword	Low Kick / Sacred Sword+19 more movesets	54%	35.4%	3.11	14:19	34.8	0%	3,093	18.5	424
29	Terrakion rockfighting Double Kick / Sacred Sword	Double Kick / Sacred Sword+11 more movesets	54%	35.2%	3.12	14:23	32.7	0%	3,698	18.3	468
30	Lucario fightingsteel Force Palm / Aura Sphere	Force Palm / Aura Sphere+23 more movesets	52%	35.0%	3.15	14:29	41.4	0%	2,703	18.5	409

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