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[[File:Type Dark/Dragon.gif|link=Dark/Dragon type]]  
Species Hostile Pokémon
Abilities Hustle
None ← 634 → None
Kanto N/A Johto N/A
Hoenn N/A Sinnoh N/A
Unova N/A Kalos N/A
Evolves from [[Deino]]
Evolves into [[Hydreigon]]
'(ジヘッド Jiheddo)'
[[Generation V]]
Evolutionary line
No evolution line
Weight Height
Pokédex color Egg group
Shape Footprint

Zweilous (Japanese: ジヘッド Jiheddo) is a Dark/Dragon-type Pokémon which was introduced in Generation V.



Like Deino, Zweilous is a blue dinosaur-like Pokémon, but after evolving, it gained a second head. Black fur covers both heads' necks and eyes. Two wings have also appeared after evolving. On the end of each front leg are two claws. It has a stubby tail and two feather-like "horns" on both of its heads. Its underbelly has two rows of magenta scales.


Zweilous is the evolved form of Deino as of level 50, and evolves into Hydreigon at level 64.

In the Anime

Two Zweilous made their debut in A Village Homecoming!, where one of them went on to evolve into a Hydreigon.

Game Info

Game Locations

Version(s) Area(s) Rarity
Black/White Evolve Deino None
Black 2/White 2 Victory Road Rare

Pokédex Entries

Pokédex Entries
Once it eats all the prey in its territory, it moves on to a different area. The two heads don’t get along.
Since their two heads do not get along and compete with each other for food, they always eat too much.
Black 2
The two heads do not get along. Whichever head eats more than the other gets to be the leader.
White 2
The two heads do not get along. Whichever head eats more than the other gets to be the leader.
Omega Ruby
Alpha Sapphire


Leveling Generation VI
Level Move Power Acc. PP Type Cat. Contest Cat. Appeal Jam
1 Double Hit 35 90% 10 [[Normal type|Normal]] [[Move#Physical|Physical]]
1 Dragon Rage - 100% 10 [[Dragon type|Dragon]] [[Move#Special|Special]]
4 Focus Energy - -% 30 [[Normal type|Normal]] [[Move#Status|Status]]
9 Bite 60 100% 25 [[Dark type|Dark]] [[Move#Physical|Physical]]
12 Headbutt 70 100% 15 [[Normal type|Normal]] [[Move#Physical|Physical]]
17 Dragonbreath 60 100% 20 [[Dragon type|Dragon]] [[Move#Special|Special]]
20 Roar - 100% 20 [[Normal type|Normal]] [[Move#Status|Status]]
25 Crunch 80 100% 15 [[Dark type|Dark]] [[Move#Physical|Physical]]
28 Slam 80 75% 20 [[Normal type|Normal]] [[Move#Physical|Physical]]
32 Dragon Pulse 90 100% 10 [[Dragon type|Dragon]] [[Move#Special|Special]]
38 Work Up - -% 30 [[Normal type|Normal]] [[Move#Status|Status]]
42 Dragon Rush 100 75% 10 [[Dragon type|Dragon]] [[Move#Physical|Physical]]
48 Body Slam 85 100% 15 [[Normal type|Normal]] [[Move#Physical|Physical]]
55 Scary Face - 100% 10 [[Normal type|Normal]] [[Move#Status|Status]]
68 Hyper Voice 90 100% 10 [[Normal type|Normal]] [[Move#Special|Special]]
79 Outrage 120 100% 10 [[Dragon type|Dragon]] [[Move#Physical|Physical]]
Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.


Black White Black 2 White 2 Back
X Y Omega Ruby Alpha Sapphire Back


  • Zweilous evolves at the highest level of any Pokémon (level 64).
  • Its name appears to be combination of Zwei, the German word for the number 2 (referencing Zweilous' number of heads and its number on the evolution line) and jealous, since one head is always competing with the other. For instance if one head ate more than the other, the other would be jealous of the other.
    • Also, Zweil might also came from Zwilling, the German word for twin since Zweilous have 2 heads and they are twins.
  • It seems to have a pair of wings growing or developing on its back. This would make sense because its evolved form Hydreigon has wings.
  • Basculin and Zweilous are the same species, both being Hostile Pokémon.
  • No Trainer in the Generation V games has Zweilous. It shares this trait with Rufflet, Vullaby, Mandibuzz, and Ferrothorn.
  • Zweilous is modeled after the Hydra in Greek and Roman mythology, and shares the multiple heads associated with the hydra.
  • Due to the fact that Hydreigon has visible eyes and a "frill" around its neck, it can be presumed that Zweilous and Deino have eyes underneath their "hoods".
  • Since Zweilous has only 2 wings, it still cannot fly, as opposed to Hydreigon, who must have 6 wings in order to fly properly.


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