Hydreigon
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Hydreigon is a Pokémon introduced in Generation V (Unova).
It evolves from Zweilous when given a Evo Candy. It is the final evolved form of [[Deino].
There is a chance that Hydreigon will be reverted into Zweilous when exposed to a Devolution Spray KC-MK1, Devolution Spray KC-MK2, or Devolution Spray KC-MK3. Similarly, a Devolution Spray can be used on Zweilous for a chance of it reverting into Deino.
Other forms
Shiny
