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Cloyster counters

Gen 2 OU · Smogon source period Jul 2026 - Sep 2026

Cloyster
#0091 Cloyster
WaterIce
USAGE 67.3% #2
ABILITYNo Ability
HP 50
ATK 95
DEF 180
SPA 85
SPD 45
SPE 70
BST525
2×
ElectricGrassFightingRock
½×
Water
¼×
Ice
Spikes 100.0% Surf 89.4% Explosion 87.2% Toxic 73.1% Ice Beam 14.9% Rapid Spin 11.4% Rest 10.6% Hidden Power Electric 8.2%
Leftovers 94.2% Miracle Berry 5.8% Never-Melt Ice 0.0% Gold Berry 0.0% Quick Claw 0.0% Pink Bow 0.0% Mystic Water 0.0%
No Ability100.0%
Browse Gen 2 OU teams using Cloyster →

Leading observed checks

Open a matchup for a separate set-based damage estimate, or browse uploaded teams with both Pokémon.

Team core to explore Cloyster + Snorlax 99.7% teammate usage Explore teams →

Checks & Counters

Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.

How to read this table

Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.

# Checker Encounters Conservative score Target KO or switch rate

Ranked #2 with 67.29% usage. Sorted by conservative score.