Alhazred, The Occultist

Manic (Whenever a source would put stress counters on
you, you may instead sacrifice a Curio, and return target creature card with mana cost less than or equal to X
from your graveyard to the battlefield it gains haste,
sacrfice it at the end of turn, X is equal to the amount of stress prevented this way.)
{2}{b}{b}, {t}: Exile target creature until Alhazred, The Occultist leaves the battlefield

Forbidden knowledge holds great power.