Rot-Tide Gargantua is a common Creature — Zombie Kraken card from Innistrad: Double Feature (DBL), collector number 396. Current market price: $0.19 (foil $0.47), TCGplayer market prices via Scryfall.
Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, each opponent sacrifices a creature of their choice.