Spectral Spellslinger

Spectral Spellslinger enters play with X charge counters.
Rally(Whenever Spectral Spellslinger or another ally enters the battlefield, place 1 charge counter on Spectral Spellslinger)
Spectral Spellslinger's power is equal to the number of charge counters it has
{t} Remove any number of charge counters from Spectral Spellslinger: Spectral Spellslinger deals that much damage divided as you chose between up to two target creatures