Master of Waves (THS) from Theros, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Karl Kopinski
• Card Text:
  Protection from red
  Elemental creatures you control get +1/+1.
  When Master of Waves enters the battlefield, put a number of 1/0 blue Elemental creature tokens onto the battlefield equal to your devotion to blue. (Each U in the mana costs of permanents you control counts toward your devotion to blue.)