CascadeCascade
Harbor Serpent

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.

Like most giant monsters villagers worship as gods, it proves a fickle master.

5/5

Illustrated by

Magic 2013Magic 2013#53·Common·English
Oct 22, 2026
Market$0.07
Median$0.20
Buy on TCGPlayer

Legality

LegalCommanderNot legalStandardLegalModernNot legalPremodernLegalLegacyLegalVintageNot legalBrawlNot legalPioneer
LegalOathbreaker
LegalPauperNot legalHistoric
Not legalTimeless

Rulings

Aug 15, 2010

Harbor Serpent’s abilities care about lands with the land type Island, not necessarily lands named Island.

Aug 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.