Is Hydreigon viable in Gen 9 UU?

Hydreigon is ranked #25 in Gen 9 UU with 9.23% usage according to Smogon Apr 2026 - Jun 2026 data.

What beats Hydreigon in Gen 9 UU?

The best counter for Hydreigon in Gen 9 UU is Slither Wing with a 50.9% win rate when they meet. Based on Smogon's Apr 2026 - Jun 2026 usage data, the top Pokémon that beat Hydreigon include Slither Wing, Tinkaton, Latios, Mandibuzz.

What is the best counter for Hydreigon in Gen 9 UU?

Slither Wing is the best counter for Hydreigon in Gen 9 UU, KOing or forcing it out in 50.9% of their encounters.

Hydreigon counters

Gen 9 UU · Sorted by reliability score · Smogon · Apr 2026 - Jun 2026

#0635 Hydreigon

DarkDragon

USAGE 9.2% #25

BASE STATS

HP 92

ATK 105

DEF 90

SPA 125

SPD 90

SPE 98

BST600

TYPE MATCHUPS

4×

Fairy

2×

IceFightingBugDragon

½×

FireWaterElectricGrassGhostDark

0×

Psychic

Moves

Dark Pulse 83.4% Draco Meteor 67.9% Flash Cannon 51.8% Nasty Plot 50.1% Flamethrower 39.7% Substitute 35.0% U-turn 28.4% Fire Blast 12.1%

Items

Leftovers 52.1% Choice Scarf 23.5% Choice Specs 17.8% Loaded Dice 1.5% Rocky Helmet 1.2% Assault Vest 1.0% Eject Pack 0.7% Life Orb 0.5%

Tera Types

Steel 55.3% Poison 17.7% Dragon 8.2% Fire 6.7% Fairy 5.5% Dark 4.1% Ghost 1.5% Grass 0.4%

Common Teammates

Browse Gen 9 UU teams using Hydreigon →

Teams using Slither Wing 51% Teams using Tinkaton 42% Teams using Latios 42% Teams using Mandibuzz 24%

Checks & Counters

Reliability ranks observed matchups; KO rate is how often the checker knocked out or forced out the target. “Checker faints” reports the checker's own observed death rate. Categories use matchup reliability plus offensive and defensive base stats.

How to read this table

Use encounter count to judge sample size. A high-reliability check with a modest KO rate can still be useful when it consistently forces switches or limits the target.

# Checker Encounters Reliability KO Rate