Elemental Mastery (SHM) from Shadowmoor, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Cyril Van Der Haegen
• Card Text:
  Enchant creature
  Enchanted creature has "T: Put X 1/1 red Elemental creature tokens with haste into play, where X is this creature's power. Remove them from the game at end of turn."