Rex, Cyber-Hound (PIP) from Fallout, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jeremy Paillotin
• Card Text:
  Whenever Rex, Cyber-Hound deals combat damage to a player, they mill two cards and you get EE (two energy counters).
  Pay EE: Choose target creature card in a graveyard. Exile it with a brain counter on it. Activate only as a sorcery.
  Rex has all activated abilities of all cards in exile with brain counters on them.