Gloomwield Task Mage

{b}, {t}, Discard a card: Exile target card from a graveyard. You gain 3 life.
{b}{b}, {t}, Discard a card: Target creature gets -4/-4 until end of turn.
{3}{b}{b}, {t}, Discard a card: Creatures you control get +1/+0 and gain fear until end of turn.