Ulvenwald Hydra [Shadows over Innistrad Prerelease Promos] Earth Ice Set: XY: BREAKthrough Type: Psychic

Set: XY: BREAKthrough Type: Psychic Rarity: Holo Rare Retreat cost: 0

For each of those cards

Set: XY: Ancient Origins Type: Water Rarity: Rare Retreat cost: Colorless

the Ruiner has hexproof if it hasn't dealt damage yet

Mirran resistance

Ulvenwald Hydra [Shadows over Innistrad Prerelease Promos] Earth Ice Set: XY: BREAKthrough Type: PsychicSet: 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 your library.