Staff of Corruption

({p/b} can be paid with either {b} or 2 life.)

{1}: Untap Staff of Corruption.
{1}{p/b}, {t}: Discard a card.
{2}{p/b}, {t}: Add {b}{b}{b}.
{3}{p/b}, {t}: Put a -1/-1 counter on target creature.
{4}{p/b}, {t}: You draw a card and you lose 1 life.
{5}{p/b}, {t}: You gain 5 life.