Chasm Skulker

Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.
When Chasm Skulker dies, create X 1/1 blue Squid creature tokens with islandwalk, 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.)