Abhorrent Umbracoil

Abhorrent Umbracoil can't attack or block unless
you control an island. Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
At the beginning of your endstep, if you don't
control an island, Abhorrent Umbracoil does 1
damage to you. If you have taken 5 or more
damage this way, Abhorrent Umbracoil is now a
0/3 legendary land creature with Defender and
"{t}: {u}{u}".