Hungering Hydra [Core Set 2019 Prerelease Promos]Set: Core Set 2019 Prerelease Promos Type: Creature Hydra Rarity: Rare Cost: {X}{G} Hungering Hydra enters the battlefield with X +1 +1 counters on it. Hungering Hydra can't be blocked by more than one creature. Whenever Hungering Hydra is dealt damage, put that many +1 +1 counters on it. (It must survive the damage to get the counters.)

At the beginning of your end step

Set: Neo Destiny Unlimited Type: Water Rarity: Uncommon Retreat cost: Colorless

(For example

Undead Vizier exploits a creature

Set: Duel Decks: Elves vs

Set: Black & White: Black Star Promos Type: Fire Rarity: Promo Retreat cost: Colorless

Set: Champions of Kamigawa Type: Legendary Land Rarity: Rare {T}: Add {W}

) Search your deck for a card

Set: EX: Power Keepers Type: Water Rarity: Ultra Rare Retreat cost: Colorless

Set: EX: Crystal Guardians Type: Grass Rarity: Rare Retreat cost: Colorless

Set: World Championships 2017 Type: Water Rarity: Common Retreat cost: Colorless

Set: EX: Unseen Forces Type: Water Rarity: Holo Rare Retreat cost: Colorless