Harbor Serpent
Creature — Serpent
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
This creature can't attack unless there are five or more Islands on the battlefield.5/5
Printings & Conditions (3)
Magic 2011 (M11)(Magic 2011 Core Set)#56Common
Magic 2012 (M12)(Magic 2012 Core Set)#56Common
Magic 2013 (M13)(Magic 2013 Core Set)#53Common