Runaway Steam-Kin (GRN) from Guilds of Ravnica, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jason Felix
• Card Text:
  Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin.
  Remove three +1/+1 counters from Runaway Steam-Kin: Add RRR.