Blastoise.
Gen 9 Doubles OU usage profile · rank #121
august 2026 · 203.7K battles
august 2026 · 203.7K battles
waterPokédex entry ↗
Usage · August 2026
0.2%
Blastoise is ranked #121 in Gen 9 Doubles OU, carried by 7,017 teams
TierD · outside the top 60
Ladder rank#121 of 245
Raw count7,017
Viability ceiling83
Month on month+0.08pp
13 month peak0.3%
FormatGen 9 Doubles OU
Base statsspecies values, before EVs and natureBST 530
HP
79
Atk
83
Def
100
SpA
85
SpD
105
Spe
78
Usage over time0.2%▲ 0.08pppeak 0.3% · Oct '25
hover a month for the exact figure · 13 months of ladder history
Most used set
48.3% of Blastoise teamsHP
0
Atk
0
Def
4
SpA
252
SpD
0
Spe
252
NatureModest
AbilityRain Dish · 95.3%
ItemLife Orb · 90.7%
Tera typeWater · 98.0%
Moves
96.1%
94.3%
93.5%
91.2%
Alternative spreads
over 5% usageModest252 SpA / 4 SpD / 252 Spe42.4%
Moves
5 tracked96.1%
94.3%
93.5%
91.2%
5.9%
Best Blastoise build for Gen 9 Doubles OU
The set above is the one Gen 9 Doubles OU players run most often, taken from 203,650 battles in August 2026. Blastoise sits at rank #121 with 0.2% usage, which puts it in D tier, up 0.08 points on the month before.
These are usage numbers, not a recommendation from a council. A move at 90% is close to mandatory; anything under 30% is a tech pick that answers a specific matchup. Read the spreads the same way: the top spread is the safe default, and the alternatives usually trade bulk for speed or the other way round.
The checks and counters table is generated from real games rather than a type chart, so it accounts for items, Tera choices, and how often the matchup ends in a switch instead of a knockout.