Kutham, Cobalt Warden

First strike, flying
Cobalt Warden —When Kutham, Cobalt
Warden blocks an opponent creature's attack and
doesn't die, put a +1/+1 counter on Kutham,
Cobalt Warden.
{u},{t}: Sacrifice {x} +1/+1 counters on Kutham,
Cobalt Warden. Draw {x} cards.