Mahoraga, untamed

This creature enters with a +1/+1 counter on it. Ward—Pay {X} and X life, where X is the number of counters on this creature. Whenever another creature you control enters, sacrifice it. Whenever this creature is dealt damage, if it’s still on the battlefield, remove all damage from it and put a +1/+1 counter on it. At the beginning of each end step, put X +1/+1 counters on this creature, where X is 1 plus the number of times this creature was targeted by a spell or ability this turn.