Ulvenwald Hydra [Shadows over Innistrad Prerelease Promos] Invasion Emerge {5}{U}{U} (You may cast

Emerge {5}{U}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value

Set: Oath of the Gatewatch Prerelease Promos Type: Artifact — Equipment Rarity: Rare Cost: {1} Equipped creature gets +1/+1 for each other creature you control that shares a creature type with it

It plays similar to the classic game of Crazy 8s

this Pokemon does 20 damage to itself

Ulvenwald Hydra [Shadows over Innistrad Prerelease Promos] Invasion Emerge {5}{U}{U} (You may castSet: Shadows over Innistrad Prerelease Promos Type: Creature Hydra Rarity: Mythic Cost: {4}{G}{G} Reach Ulvenwald Hydra's power and toughness are each equal to the number of lands you control. When Ulvenwald Hydra enters the battlefield, you may search your library for a land card, put it onto the battlefield tapped, then shuffle.