Voltaic Brawler (KLD) from Kaladesh, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Raymond Swanland
• Card Text:
  When Voltaic Brawler enters the battlefield, you get EE (two energy counters).
  Whenever Voltaic Brawler attacks, you may pay E. If you do, it gets +1/+1 and gains trample until end of turn.