#0635 · Unova · Generation 5 · pseudo-legendary

Hydreigon

Brutal Pokémon · Dark/Dragon-type

Hydreigon is a Dark/Dragon-type Pokémon, the Brutal Pokémon, number 635 (#0635) in the National Pokédex. It was introduced in Generation 5 and comes from the Unova region. It is 1.8 m tall and weighs 160 kg.

Hydreigon is the Brutal Pokémon, a three-headed Dark and Dragon type in which only the middle head has a brain. The two heads on its arms just bite, and the Pokédex says anything that moves looks like a foe.

How to pronounce Hydreigon

Hydreigon is pronounced hy-DRY-gun. The capital letters show the stressed syllable.

Listen to Hydreigon said out loud:

In Japanese it is サザンドラ (Sazandora).

Hear every other name on the Pokémon pronunciation guide.

Lore

Biology

Hydreigon is 1.8 m tall and 160 kg, with a dark blue body, black fur on its necks and shoulders, fuchsia stripes and six thin black wings. The necks of its two side heads double as arms with elbow and shoulder joints, and Bulbapedia says all three heads can generate energy for attacks.

Behaviour

Hydreigon is violent and destructive, but the Scarlet entry says it is very intelligent, though it thinks only of destruction. Pokédex entries say its heads take turns biting until a target goes down, and there are stories of villages destroyed by it. The Violet entry says it is said to have grown ferocious because people long ago considered it evil and attacked it relentlessly. In the anime, Cameron's Hydreigon is fairly obedient to its Trainer.

Habitat

Bulbapedia says Hydreigon is rarely met in the wild, but has been sighted diving at passers-by from the sky. In Scarlet it comes from evolving Zweilous or from 5 and 6 star Tera Raid Battles; Violet players need to trade for it.

Powers

Hydreigon fights with Tri Attack, Dragon Pulse, Hyper Voice, Outrage and Hyper Beam, and can boost with Nasty Plot. Its only Ability is Levitate, which makes it immune to Ground moves. With 125 base Special Attack, 98 Speed and a base total of 600 it is a fast special attacker.

Name origin

Hydreigon may combine 'hydra', the German drei ('three') and 'dragon'. The Japanese name is Sazandora (サザンドラ), which may use 三 san ('three') and 残忍 zannin ('brutal'), and may also nod to the movie monster Ghidorah.

Design inspiration

Bulbapedia, citing Ken Sugimori's interviews in Nintendo Dream, says the Deino line was remade around Yamata no Orochi, the eight-headed serpent of Japanese myth. Bulbapedia adds that Hydreigon has fewer heads so that it looks less off-putting, with its six wings as a nod to the missing ones. The brainless heads on its arms may also recall hand puppets, which is a fan reading.

Evolution notes

Hydreigon evolves from Zweilous at level 64 and is the last stage of the line.

In the games

Champion Iris battles you with a Hydreigon in Black 2 and White 2, and Lance can also field one at the Pokémon World Tournament. It first appeared in Black and White as the final evolution of Deino, and in Scarlet and Violet it appears in Tera Raids. It is unobtainable in Legends: Z-A.

In the anime

Carlita's Hydreigon debuted in the two Victini films, 'Victini and Reshiram' and 'Victini and Zekrom', where it also carries her through the air. In the series, Cameron's Hydreigon defeated Ash's Boldore and Oshawott, then fell to Pignite in 'Strong Strategy Steals the Show!' and 'Cameron's Secret Weapon!'.

Fun facts

• Level 64 is the highest level at which any Pokémon evolves by levelling up; Bulbapedia wonders whether it nods to 1964, the year of the film Ghidorah, the Three-Headed Monster.
• The Paradox Pokémon Iron Jugulis resembles Hydreigon, and it is said to be either a far-future relative or a counterpart from another timeline.
• Hydreigon lurks behind the fighters on the Kalos Pokémon League stage in Super Smash Bros. for Wii U, in its Dragonmark Chamber layout alongside Dragonite, Garchomp and Axew.

Sources: Bulbapedia: Hydreigon (Pokémon) · Serebii: Hydreigon (Scarlet/Violet Pokédex)

Base stats

• HP: 92
• Attack: 105
• Defense: 90
• Sp. Atk: 125
• Sp. Def: 90
• Speed: 98

Hydreigon’s base stat total is 600. Its highest stat is Sp. Atk.

Type matchups

What is Hydreigon weak to?

Hydreigon takes extra damage from Fairy (4×), Ice (2×), Fighting (2×), Bug (2×), Dragon (2×) moves.

It resists Fire (½×), Water (½×), Electric (½×), Grass (½×), Ghost (½×), Dark (½×).

It is immune to Psychic moves.

Evolution

What does Hydreigon evolve from?

Hydreigon evolves from Zweilous at level 64.

Hydreigon is the final stage of its evolution family.

The whole family: Deino, Zweilous, Hydreigon.

• Deino evolves into Zweilous at level 50.

Abilities

• Levitate: Evades Ground moves.

Moves

Moves Hydreigon learns by level up in Scarlet / Violet

TM moves (62)

Hydreigon can learn 62 moves from TMs in Scarlet / Violet: Take Down, Scary Face, Protect, Fire Fang, Thunder Fang, Ice Fang, Acrobatics, Thief, Fire Spin, Facade, Bulldoze, Snarl, Rock Tomb, Dragon Tail, Endure, Sunny Day, Rain Dance, Zen Headbutt, U-turn, Body Slam, Sleep Talk, Reflect, Thunder Wave, Stomping Tantrum, Rest, Rock Slide, Taunt, Flash Cannon, Dark Pulse, Fly, Dragon Dance, Substitute, Crunch, Tailwind, Dragon Pulse, Stealth Rock, Hyper Voice, Heat Wave, Surf, Flamethrower, Helping Hand, Earth Power, Nasty Plot, Fire Blast, Hydro Pump, Earthquake, Stone Edge, Giga Impact, Outrage, Focus Blast, Hyper Beam, Draco Meteor, Tera Blast, Roar, Spite, Dual Wingbeat, Lash Out, Scale Shot, Psych Up, Throat Chop, Breaking Swipe, Dragon Cheer.

Egg moves (4), which Deino can hatch knowing:Astonish, Belch, Double Hit, Head Smash.

Breeding & training

• Gender: 50% male, 50% female.
• Egg groups: Dragon.
• Egg cycles: 40 (steps to hatch, Scarlet/Violet: 5,120).
• Catch rate: 45 out of 255.
• Base friendship (Gen 8 onward): 35.
• Growth rate: Slow (1,250,000 experience points to reach level 100).
• Defeating it gives 3 Sp. Atk effort values.
• Base experience yield: 270.

Pokédex entries

The three heads take turns sinking their teeth into the opponent. Their attacks won't slow until their target goes down. (Shield)

There are a slew of stories about villages that were destroyed by Hydreigon. It bites anything that moves. (Sword)

It responds to movement by attacking. This scary, three-headed Pokémon devours everything in its path! (Black 2, White 2, Y, Alpha Sapphire)

The heads on their arms do not have brains. They use all three heads to consume and destroy everything. (White, X, Omega Ruby)

This brutal Pokémon travels the skies on its six wings. Anything that moves seems like a foe to it, triggering its attack. (Black)

Names around the world

Trivia

• Fastest Dragon type in Gen 5: 98 Speed.
• Heaviest Dark type in Gen 5: 160 kg.
• Tallest Dark type in Gen 5: 1.8 m.
• Highest Sp. Atk among Dark types in Gen 5: 125.
• Highest base stat total among Dark types in Gen 5: 600.
• Taller than 82% of all Pokémon (1.8 m).
• Heavier than 90% of all Pokémon (160 kg).
• Base stat total 600, ranked #25 of 1,025.
• Its best stat is Sp. Atk, ranked #52 of 1,025.
• One of 5 Pokémon that are both Dark and Dragon.
• One of 170 blue Pokémon.
• Number 142 of 156 Pokémon introduced in Generation 5 (Unova).
• Part of an evolution family of 3 Pokémon.
• Can learn 76 different moves in Scarlet / Violet.
• Catch rate 45: about 5.9% per Poké Ball at full health.
• Appears in 5 distinct Pokédex entries.

Sources and fact-checking

• Stats, types, abilities, moves, evolutions, forms and Pokédex entries: PokéAPI open game data.
• Lore: written by pokee.si in our own words, researched from Bulbapedia: Hydreigon (Pokémon), Serebii: Hydreigon (Scarlet/Violet Pokédex).
• Pronunciation (hy-DRY-gun): it follows how the English anime, games or official videos say it.

Last checked: 20 October 2026. Every sentence of the lore was checked against Bulbapedia, Serebii and the game data.

Explore

Dark-type Pokémon · Dragon-type Pokémon · Dark/Dragon weaknesses and matchups · Hydreigon vs Dragonite · Hydreigon vs Tyranitar · Hydreigon vs Garchomp · Hydreigon vs Dragapult · Hydreigon vs Iron Jugulis · Unova region guide · Levitate ability · Compare Hydreigon · Full Pokédex · Type chart · All moves

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