Vryx's Repeating Crossbow

Vryx's Repeating Crossbow enters the battlefield
with 10 bolt counters on it.
{t}, tap an untaped creature you control, remove
X bolt counters from Vryx's Repeating Crossbow:
Deal X damage divided as you choose to X
creatures.
{x},{t}: put X bolt counters on Vryx's Repeating Crossbow. You cannot have more than 10 bolt counters on Vryx's Repeating Crossbow.