Ithicar, Eternal Assassin

Ithicar, Eternal Assassin enters the battlefield
with X charge counters.
Ithicar, Eternal Assassin isn't a creature if it has a charge counter on it.
{u}{b}{r}, Remove a charge counter from Ithicar, Eternal Assassin: Search your library for an
assassin creature card and put it onto the battlefield. Shuffle your library. Shuffle all
Assassin creatures you control into their owner's libraries at the next endstep.