Best Regirock counters

The best Regirock counters in Pokémon GO are Primal Groudon, Primal Kyogre, Mega Swampert, Mega Garchomp, Shadow Groudon, Mega Sceptile, and Shadow Metagross. These Pokémon perform best with the moves outlined below. We suggest a minimum group size of 4 - 9 Trainers to defeat Regirock in a 5-Star Raid.

Simulation settings

Best counter 👑

Primal Groudon

Mud Shot / Precipice Blades

Primal Kyogre

Waterfall / Origin Pulse

Mega Swampert

Water Gun / Hydro Cannon

Mega Garchomp

Mud Shot / Earth Power

Shadow Groudon

Mud Shot / Precipice Blades

Mega Sceptile

Fury Cutter / Frenzy Plant

Shadow Metagross

Bullet Punch / Meteor Mash

#	Name	Fast Attack	Charged Attack	DPS	TDO	Faints	TTW	Score
1.	Primal Groudon	Mud Shot	Precipice Blades *	23.29	790.8	18	664s	47.5
2.	Primal Kyogre	Waterfall	Origin Pulse *	23.09	705.5	21	671s	46.1
3.	Mega Swampert	Water Gun	Hydro Cannon *	21.15	752.5	19	730s	43.5
4.	Mega Garchomp	Mud Shot	Earth Power *	20.36	853.4	17	755s	43.3
5.	Shadow Groudon	Mud Shot	Precipice Blades *	21.70	656.3	22	715s	43.2
6.	Mega Sceptile	Fury Cutter	Frenzy Plant *	22.25	541.4	27	702s	42.4
7.	Shadow Metagross	Bullet Punch	Meteor Mash *	22.67	493.1	30	693s	42.2
8.	Mega Heracross	Counter	Close Combat	20.29	621.2	24	764s	40.5
9.	Shadow Kyogre	Waterfall	Origin Pulse *	21.71	456.1	32	724s	40.1
10.	Shadow Garchomp	Mud Shot	Earth Power *	19.51	610.8	24	794s	39.1
11.	Therian Forme Landorus	Mud Shot	Sandsear Storm *	19.14	604.6	24	809s	38.5
12.	Terrakion	Double Kick	Sacred Sword *	20.71	434.0	34	759s	38.3
13.	Mega Blastoise	Water Gun	Hydro Cannon *	20.16	481.0	31	776s	38.2
14.	Shadow Excadrill	Metal Claw	Scorching Sands	21.57	365.5	41	737s	38.2
15.	Shadow Swampert	Water Gun	Hydro Cannon *	19.79	489.4	30	789s	37.8
16.	Mega Blaziken	Counter	Focus Blast	21.15	375.2	39	750s	37.8
17.	Groudon	Mud Shot	Precipice Blades *	18.25	653.9	22	846s	37.6
18.	Kartana	Razor Leaf	Leaf Blade	21.16	346.7	43	753s	37.2
19.	Keldeo (Ordinary Forme)	Low Kick	Sacred Sword	19.53	473.7	31	800s	37.2
20.	Keldeo	Low Kick	Sacred Sword	19.53	473.7	31	800s	37.2
21.	Shadow Machamp	Counter	Dynamic Punch	20.30	392.2	38	778s	36.9
22.	Mega Venusaur	Vine Whip	Frenzy Plant *	18.07	601.6	24	856s	36.7
23.	Shadow Empoleon	Metal Claw	Hydro Cannon *	21.12	311.1	48	759s	36.3
24.	Metagross	Bullet Punch	Meteor Mash *	18.75	484.7	30	832s	36.2
25.	Shadow Mamoswine	Mud-Slap	High Horsepower	20.08	354.4	42	790s	35.8
26.	Shadow Feraligatr	Water Gun *	Hydro Cannon *	20.00	342.3	43	794s	35.5
27.	Shadow Hariyama	Counter	Dynamic Punch	19.24	397.6	37	818s	35.5
28.	Mega Alakazam	Counter *	Focus Blast	19.21	398.1	37	819s	35.4
29.	Sky Forme Shaymin	Magical Leaf	Grass Knot	18.53	456.3	32	843s	35.4
30.	Shadow Sceptile	Fury Cutter	Frenzy Plant *	19.73	352.0	42	803s	35.3

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Group size

You need at least 4 Trainers to defeat a Regirock in a 5-Star Raid.

Minimum group size: 4 Trainers
Optimal group size: 5 - 9 Trainers
Very easy with: 10+ Trainers
Probably impossible with less than 4 Trainers

Regirock CP range from Raids

Regirock can be caught with the following Combat Power after being defeated in Raids:

From 1703 CP to 1784 CP, with no weather boost
From 2129 CP to 2230 CP with Partly Cloudy weather boost

Regirock weaknesses

Regirock type chart

When fighting Regirock, keep in mind the that Rock-type Pokémon are weak to Fighting, Grass, Ground, Steel, and Water-type moves. They take reduced damage from Fire, Flying, Normal, and Poison-type moves.

Weaknesses

Weaknesses

Fighting	160.0%
Grass	160.0%
Ground	160.0%
Steel	160.0%
Water	160.0%

Resistances

Resistances

Fire	62.5%
Flying	62.5%
Normal	62.5%
Poison	62.5%

Type chart shows the percentage (%) of damage taken from an incoming attack of a particular type.

Best move-types and best weather for defeating Regirock

Move-type	Usage (%)	Weather
Fighting	102.0%	Cloudy
Grass	96.0%	Sunny
Ground	78.0%	Sunny
Water	60.0%	Rain
Steel	38.0%	Snow
Bug	8.0%	Rain
Dragon	8.0%	Windy
Electric	6.0%	Rain
Psychic	2.0%	Windy
Ghost	2.0%	Fog

About our ranking methodology

Our guide provides detailed information on recommended Pokémon and moves that are most effective against Regirock in Raid Battles. Whether you're looking for the best counters to take Regirock down quickly with high DPS, or the tankiest counters that can withstand its attacks, our guide has something for every trainer.

This guide displays a list of best Regirock counters in Pokémon GO with their Fast Attacks, Charged Attacks, DPS (damage per second), TDO (total damage output), faints, TTW (time to win), and score. The list is sorted by the score, which is calculated based on the DPS and TDO. Each Pokemon's move type is indicated by an icon beside the move name.

When calculating the best counters for any Pokémon, our simulator takes into account various factors, such as the defender's typing and average DPS against each attacker, the weather's influence, energy left over from using charge attacks, Shadow Pokémon attack and defense stat changes, and more. During the initial phase of simulations, we calculate DPS and TDO for each attacker that is currently available in the game, and then we continue to rank them.

We use a ranking method developed by a Reddit user named /u/Elastic_Space, which is described in detail in this Reddit post. It is a fairly complicated, but very well thought-out mathematical model for predicting simulation results without actually running the simulations. It also correlates with field data almost too well not to be used. Reddit

Our Time to Win (TTW) and Faint numbers are also estimated, and should be taken with a grain of salt. Since we do not account for factors like Friendship and Mega damage boost, they will differ from actual experience in the field.