Blastoise-Mega.
Champions BSS Reg M-C usage profile · rank #31
september 2026 · 69.5K battles
september 2026 · 69.5K battles
waterPokédex entry ↗
Usage · September 2026
4.8%
Blastoise-Mega is ranked #31 in Champions BSS Reg M-C, carried by 8,023 teams
TierC · top 60 of the format
Ladder rank#31 of 278
Raw count8,023
Viability ceiling75
Month on month+4.81pp
13 month peak4.8%
FormatChampions BSS Reg M-C
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sets and counters from 69.5K battles
Base statsspecies values, before EVs and natureBST 530
HP
79
Atk
83
Def
100
SpA
85
SpD
105
Spe
78
Usage over time4.8%▲ 4.81pppeak 4.8% · Sep '26
hover a month for the exact figure · 13 months of ladder history
Most used set
23.8% of Blastoise-Mega teamsHP
2
Atk
0
Def
0
SpA
32
SpD
0
Spe
32
NatureModest
AbilityMega Launcher · 100.0%
ItemBlastoisinite · 100.0%
EV spread2 HP / 32 SpA / 32 Spe
Moves
92.5%
85.3%
68.1%
51.4%
Alternative spreads
over 5% usageModest13 HP / 2 Def / 32 SpA / 19 Spe15.5%
Timid11 HP / 1 Def / 32 SpA / 22 Spe6.5%
Moves
8 tracked92.5%
85.3%
68.1%
51.4%
45.6%
17.1%
17.0%
7.7%
Items
100.0%
Abilities
100.0%
EV spreads
top 6Modest2 HP / 32 SpA / 32 Spe23.8%
Modest13 HP / 2 Def / 32 SpA / 19 Spe15.5%
Timid11 HP / 1 Def / 32 SpA / 22 Spe6.5%
Modest11 HP / 25 SpA / 30 Spe6.3%
Modest19 HP / 1 Def / 15 SpA / 31 Spe4.4%
Timid1 HP / 1 Def / 32 SpA / 32 Spe3.9%
Top teammates
share of teams
Best Blastoise-Mega build for Champions BSS Reg M-C
The set above is the one Champions BSS Reg M-C players run most often, taken from 69,462 battles in September 2026. Blastoise-Mega sits at rank #31 with 4.8% usage, which puts it in C tier, up 4.81 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.