Implement of Ferocity (AER) from Aether Revolt, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Jason Kang
• Card Text:
  G, Sacrifice Implement of Ferocity: Put a +1/+1 counter on target creature. Activate this ability only any time you could cast a sorcery.
  When Implement of Ferocity is put into a graveyard from the battlefield, draw a card.