The Darkness Crystal

Mana Cost: {2}{B}{B}
Total Cost: 4
Type: Legendary Artifact
Description: Black spells you cast cost {1} less to cast.
If a nontoken creature an opponent controls would die, instead exile it and you gain 2 life.
{4}{B}{B}, {T}: Put target creature card exiled with The Darkness Crystal onto the battlefield tapped under your control with two additional +1/+1 counters on it.
Colors: B