Rakdos Keyrune (RTR) from Return to Ravnica, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Daniel Ljunggren
• Card Text:
  T: Add B or R to your mana pool.
  BR: Rakdos Keyrune becomes a 3/1 black and red Devil creature with first strike until end of turn.