Rage Forger (MOR) from Morningtide, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Dominick Domingo
• Card Text:
  When Rage Forger comes into play, put a +1/+1 counter on each other Shaman creature you control.
  Whenever a creature you control with a +1/+1 counter on it attacks, you may have that creature deal 1 damage to target player.