Undercity's Embrace 
Instant
Target opponent sacrifices a creature of their choice. If you control a creature with power 4 or greater, you gain 4 life.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Target opponent sacrifices a creature of their choice. If you control a creature with power 4 or greater, you gain 4 life.