Chasm Skulker

Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.

When Chasm Skulker dies, put X 1/1 blue Squid creature tokens with islandwalk onto the battlefield, where X is the number of +1/+1 counters on Chasm Skulker. (They can't be blocked as long as defending player controls an Island.)