Necromonger

Transpose {4}{b}{b}{r} (You may cast this spell for its transpose cost. If you do, move the words in square brackets to the blank square brackets.)

When Necromonger enters, choose another target creature [you control]. Its controller sacrifices it.
Target creature [ ] gets +X/-X until end of turn,
where X is the sacrificed creature’s power. You draw
cards equal to the sacrificed creature’s toughness.