Zimballah, Abzan Ascendant

Whenever another creature enters the battlefield
under your control, put two +1/+1 counters on
Zimballah, Abzan Ascendant.
Remove X +1/+1 counters: Choose one —
• Put a +1/+1 counter on X other creatures you control.
• Destroy target creature with power X.
• Destroy target artifact or enchantment with converted mana cost X.