Chaos Witch, Quelaag

Haste
Whenever a noncreature source you control
deals damage to a player, put half that many
+1/+1 counters on Chaos Witch Quelaag
rounded down.
Whenever one or more +1/+1 counters are put
on Chaos Witch Quelaag, it deals X damage to
any target, where X is half the amount of +1/+1 counters on this card rounded down.