Is Tentacool viable in Gen 9 350 Cup?

Tentacool is ranked #14 in Gen 9 350 Cup with 10.70% usage according to Smogon Feb 2026 - Apr 2026 data.

Tentacool counters

Gen 9 350 Cup · Sorted by reliability score · Smogon · Feb 2026 - Apr 2026

#0072 Tentacool

WaterPoison

USAGE 10.7% #14

ABILITYRain Dish

BASE STATS

HP 40

ATK 40

DEF 35

SPA 50

SPD 100

SPE 70

BST335

TYPE MATCHUPS

2×

ElectricGroundPsychic

½×

FireWaterIceFightingPoisonBugSteelFairy

Moves

Rapid Spin 100.0% Knock Off 92.4% Flip Turn 85.7% Sludge Bomb 69.2% Surf 16.3% Toxic Spikes 12.8% Acid Spray 11.1% Toxic 4.3%

Items

Assault Vest 76.8% Black Sludge 10.4% Heavy-Duty Boots 5.6% Leftovers 5.1% Rocky Helmet 2.1% nothing 0.0% Damp Rock 0.0% Air Balloon 0.0%

Abilities

Rain Dish73.9%Liquid Ooze20.6%Clear Body5.5%

Tera Types

Dark 58.9% Flying 12.7% Ground 11.4% Grass 6.2% Water 3.6% Bug 2.6% Steel 2.5% Ghost 1.2%

Common Teammates

Ranked by reliability — blends KO rate with how often each Pokémon is matched up.

Smogon does not compute Checks & Counters data for this format. Use the type matchup chart above to find potential checks.

Ranked #14 with 10.70% usage. Sorted by reliability score.