Harbor Serpent Tweet Lightly Played, English, 19 in stock $0.17 1 2 3 4 5 6 7 8 9 10 Details Color: Blue Card Text: Islandwalk (This creature is unblockable as long as defending player controls an Island.)Harbor Serpent can't attack unless there are five or more Islands on the battlefield. Rarity: C Cost: 4UU Pow/Tgh: 5/5 Card Type: Creature - Serpent Artist: Daarken Name: Harbor Serpent Finish: Regular Card Number: 53/249 Set Name: Magic 2013