Lord Phasma, The Storm Sire

(Transformed from Lord Phasma, Traitor Sentinel)
Flying, Menace
When Lord Phasma, The Storm Sire attacks, you
may pay {3} and cast a nonland card from your graveyard without paying for its mana cost for this turn.
You lose life equal to the mana cost.
Whenever you cast an instant or sorcery from your graveyard, copy that spell, you may choose new targets for the copy.
Exile the spell after casting it.