Burning-Tree Bloodscale (GPT) from Guildpact, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Kev Walker
• Card Text:
  Bloodthirst 1 (If an opponent was dealt damage this turn, this creature comes into play with a +1/+1 counter on it.)
  2R: Target creature can't block Burning-Tree Bloodscale this turn.
  2G: Target creature blocks Burning-Tree Bloodscale this turn if able.