Thraximundar (ARB) from Alara Reborn, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Raymond Swanland
• Card Text:
  Haste
  Whenever Thraximundar attacks, defending player sacrifices a creature.
  Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.