Rot-Tide Gargantua (DBL) from Innistrad: Double Feature, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Filip Burburan
• Card Text:
  Exploit (When this creature enters the battlefield, you may sacrifice a creature.)
  When Rot-Tide Gargantua exploits a creature, each opponent sacrifices a creature.