Coral Barrier (M15) from Magic 2015, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Florian de Gesincourt
• Card Text:
  Defender (This creature can't attack.)
  When Coral Barrier enters the battlefield, put a 1/1 blue Squid creature token with islandwalk onto the battlefield. (It can't be blocked as long as defending player controls an Island.)