Ledev Champion (GRN) from Guilds of Ravnica, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Daarken
• Card Text:
  Whenever Ledev Champion attacks, you may tap any number of untapped creatures you control. Ledev Champion gets +1/+1 until end of turn for each creature tapped this way.
  3GW: Create a 1/1 white Soldier creature token with lifelink.