J'shwa, the Farad

Imprint — When J'shwa, the Farad enters the battlefield, you may exile an instant or sorcery
card with X in its mana cost from your hand.
{r}, {t}: Put a charge counter on J'shwa, the Farad
{u}, {ut}: Put a charge counter on J'shwa, the Farad
{1}{r}{u},{t}: You may cast a copy of the imprinted
card without paying its mana cost. X is equal to
the number of charge counters on J'shwa,
the Farad. Remove all charge counters from
J'shwa, the Farad.