港湾巨蛇 (CS Harbor Serpent)

生物～ - 巨蛇    (CMC:6)

海岛行者 （只要防御牌手操控海岛，此生物就不能被阻挡） 除非战场上有五个或更多海岛，否则港湾巨蛇不能攻击。

他是个喜怒无常的主子，就如同大多数被村民如神景仰的巨大怪兽一样。

56 M12 • CSDaarken

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Notes: TODO: Update Copyright

Legal in: Modern,Extended,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Tribal Wars Standard,Classic,Singleton 100,Commander

Oracle Text (click to copy):

Harbor Serpent {4}{U}{U} Creature — Serpent Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Harbor Serpent can't attack unless there are five or more Islands on the battlefield. 5/5

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View this MTG card on Gatherer

8/15/2010
Harbor Serpent's abilities care about lands with the land type Island, not necessarily lands named Island.
8/15/2010
The second ability checks how many Islands are on the battlefield (regardless of who controls them) only as attackers are declared. Once Harbor Serpent is declared as an attacker, it will continue to attack even if the number of Islands on the battlefield falls below five.

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Card Harbor Serpent is not on TCGPlayer.