DemonLord Pert

Demonlord Pert enters the battlefield with {x} +1+1 counters.
Whenever another demon enters the battlefield
put a +1+1 counter on Demonlord Pert.
Remove 1 +1+1 counter from this creature. Deal
2 damage to target creature or planeswalker.
Remove 2 +1+1 counters from this creature.
Target player discards 2 cards.