Nerovar, Tribe of Mozdon

Nerovar, Tribe of Mozdon enters the battlefield
with three +1/+1 counters on it.
•Remove a +1/+1 counter: Target creature gains
+1/+1 until end of turn.
•Remove two +1/+1 counters: Return target
creature to their owner's hand.
•Remove three +1/+1/ counters: Draw two cards.
"Doctor? What university did he attend?"
—Dr. Fletcher, House Aviary