Ebaranus, The Dream Eater

Ebaranus, The Dream Eater enters the
battlefield with X +1/+1 Counters.
Trample, Hexproof, Swampwalk
Whenever a player draws a card, add a Dream
Counter to Ebaranus, The Dream Eater.
Remove 5 Dream Counters: add X +1/+1
counters where X is total number of cards in all players hands.