Is Forretress viable in Gen 3 OU?

Forretress is ranked #15 in Gen 3 OU with 18.57% usage according to Smogon Apr 2026 - Jun 2026 data.

What beats Forretress in Gen 3 OU?

The best counter for Forretress in Gen 3 OU is Tyranitar with a 77.4% win rate when they meet. Based on Smogon's Apr 2026 - Jun 2026 usage data, the top Pokémon that beat Forretress include Tyranitar, Swampert, Forretress, Blissey, Skarmory.

What is the best counter for Forretress in Gen 3 OU?

Tyranitar is the best counter for Forretress in Gen 3 OU, KOing or forcing it out in 77.4% of their encounters.

Forretress counters

Gen 3 OU · Sorted by reliability score · Smogon · Apr 2026 - Jun 2026

#0205 Forretress

BugSteel

USAGE 18.6% #15

BASE STATS

HP 75

ATK 90

DEF 140

SPA 60

SPD 60

SPE 40

BST465

TYPE MATCHUPS

4×

Fire

½×

NormalIcePsychicBugDragonSteelFairy

¼×

Grass

0×

Poison

Moves

Spikes 99.9% Rapid Spin 94.9% Explosion 84.0% Hidden Power Bug 48.1% Hidden Power Ghost 41.5% Earthquake 9.6% Zap Cannon 7.2% Counter 5.9%

Items

Leftovers 100.0% Lum Berry 0.0% Choice Band 0.0% Liechi Berry 0.0% Quick Claw 0.0% nothing 0.0% Silk Scarf 0.0% Black Glasses 0.0%

Common Teammates

Browse Gen 3 OU teams using Forretress →

Teams using Tyranitar 77% Teams using Swampert 55% Teams using Forretress 49% Teams using Blissey 34% Teams using Skarmory 31%

Checks & Counters

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

# Checker Encounters Reliability KO Rate

Tyranitar

RockDark OFFENSIVE CHECK

51.741

77.4% dies 8.11%

DAMAGE CALCSand

252+ Atk Tyranitar Focus Punch vs. 252 HP / 0 Def Forretress: 137-162 (38.7 - 45.7%) -- guaranteed 3HKO after Leftovers recovery

View Tyranitar counters → Teams with Tyranitar →

Swampert

WaterGround OFFENSIVE CHECK

20.636

55.5% dies 10.94%

DAMAGE CALC

252+ SpA Swampert Hydro Pump vs. 252 HP / 252+ SpD Forretress: 158-187 (44.6 - 52.8%) -- guaranteed 3HKO after Leftovers recovery

View Swampert counters → Teams with Swampert →

Forretress

BugSteel SOFT CHECK

25.316

48.6% dies 9.93%

DAMAGE CALC

252+ Atk Forretress Explosion vs. 252 HP / 0 Def Forretress: 173-204 (48.8 - 57.6%) -- 53.1% chance to 2HKO after Leftovers recovery

View Forretress counters → Teams with Forretress →

Blissey

Normal SOFT CHECK

48.728

34.2% dies 9.42%

DAMAGE CALC

Blissey Seismic Toss vs. 252 HP Forretress: 100-100 (28.2 - 28.2%) -- guaranteed 5HKO after Leftovers recovery

View Blissey counters → Teams with Blissey →

Skarmory

SteelFlying SOFT CHECK

79.459

31.0% dies 7.29%

DAMAGE CALC

252+ Atk Skarmory Drill Peck vs. 252 HP / 0 Def Forretress: 79-93 (22.3 - 26.2%) -- possible 5HKO

View Skarmory counters → Teams with Skarmory →

Ranked #15 with 18.57% usage. Sorted by reliability score.