Illsib, Shell of Seven Seas

Defender, islandwalk
{2}{u}{u}: Illsib, Shell of Seven Seas loses
defender until end of turn. Draw a card.
Whenever an island enters the battlefield, you
may have it enter tapped instead. When you
do, that land's controller puts a +1/+1 counter
on target creature they control. Then put a
+1/+1 counter on Illsib.