Mega Blastoise Raid Guide
Water
The best counters, weaknesses, and catch CP for beating Mega Blastoise in Pokémon GO raids — computed from every attacker's stats and movepool in our imported game-data snapshot (dated below the counter table).
Catch CP (L20)
2162–2252
Raid IV floor is 10 — 2252 means a 100% IV catch.
Weather-boosted (L25)
2703–2815
Boosted in Rainy weather.
Top weakness
GrassElectric
Grass hits ×1.60.
Best counters
All viable counters — ranked by DPS³×TDOSuper-effective charged moves only
All movesetsRegular movesets (no Elite TM)
#1
Primal Groudon
Mud Shot + Solar Beam
Grass20.8 DPS1081 TDO
#2Mega Ampharos
Volt Switch + Zap Cannon
Electric22.3 DPS848 TDO
#3Mega Manectric
Thunder Fang + Wild Charge
Electric23.7 DPS676 TDO
#4Xurkitree
Thunder Shock + Discharge
Electric23.5 DPS618 TDO
#5Zekrom
Charge Beam + Wild Charge
Electric21.2 DPS829 TDO
#6Kartana
Razor Leaf + Leaf Blade
Grass23.7 DPS567 TDO
#7Mega Sceptile
Fury Cutter + Leaf Blade
Grass22.4 DPS664 TDO
#8Shaymin (Sky)
Magical Leaf + Grass Knot
Grass21.4 DPS732 TDO
#9Zarude
Vine Whip + Power Whip
Grass19.9 DPS892 TDO
#10Mega Latios
Dragon Breath + Solar Beam
Grass20.1 DPS829 TDO
#11Mega Venusaur
Vine Whip + Solar Beam
Grass19.7 DPS831 TDO
#12Thundurus (Therian)
Volt Switch + Thunderbolt
Electric21.6 DPS607 TDO
DPS and estimated total damage output (TDO) are computed against Mega Blastoise's actual typing and Mega boss stats — each attacker's best fast + charged pairing, ranked by the combined DPS³ × TDO score. Legacy / Elite-TM movesets are excluded. This is per-boss matchup math, not the neutral-target tier list. Full formula on the methodology page.
Source: pogoapi.net · Data snapshot: Aug 24, 2026 · 10,016 rows · Methodology
Weaknesses
Grass×1.60
Electric×1.60
Mega Blastoise's moves
RockRollout
fastDarkBite
fastWaterWater Gun
fastWaterHydro Pump
chargedNormalSkull Bash
chargedSteelFlash Cannon
chargedIceIce Beam
chargedWaterHydro Cannon
chargedDodge when the screen flashes — the charged moves above are what hit hardest.