Nezixl, Rising Overlord

Flying, haste.
Nezixl, Rising Overlord costs {1} less to cast for
each card with torment in your graveyard.
Torment {5}{b}{b}{r}. This ability costs {1} less to activate for each other card with torment in your graveyard. (You may cast this card from your
graveyard for its torment cost if your opponent has
lost life this turn.)