Mykos, the Merchant

Hexproof
Other creatures you control get +1/+1.
Mykos, the Merchant enters the battlefield with
{x} charge counters.
Remove a charge counter: tap or untap target
creature.
Remove a charge counter: Mykos, the Merchant
deals damage to target creature equal to 1+ the
number of charge counters on Mykos, the
Merchant.
I am Mykos!