Mightyena (Japanese: グラエナ Graena) is a Darkness-type Stage 1 Pokémon card. It is part of the EX Power Keepers expansion.
This card was included in the EX Power Keepers expansion. An exclusive Holofoil print of this card was included in the Dark Blast Theme Deck. It was later included in the Japanese World Champions Pack.
Dark Burst's effect references the fact that Sidney has a Mightyena on his team in Pokémon Ruby, Sapphire, and Emerald.