Uncontrollable Anger (10E) from Tenth Edition, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Kev Walker
• Card Text:
  Flash (You may play this spell any time you could play an instant.)
  Enchant creature (Target a creature as you play this. This card comes into play attached to that creature.)
  Enchanted creature gets +2/+2 and attacks each turn if able.