A Stage 1 Pokemon Card of type Darkness, Metal with the title Mightyena  and 70 HP of rarity Rare evolved from Poochyena from the set Delta Species.  It has the attack Delta Fang with the cost Darkness, Colorless, the energy cost 2 and the damage of 20 with the description: If the Defending Pokemon is Pokemon-ex, that Pokemon can't attack during your opponent's next turn. It has the attack Gang Up with the cost Metal, Colorless, the energy cost 2 and the damage of 10 with the description: Does 10 damage times the number of Darkness Pokemon and Metal Pokemon you have in play. It has weakness against Fighting 2. It has resistance against Psychic -30. 
Mightyena δ