Bond of Agony 
Sorcery
As an additional cost to cast this spell, pay X life. Each other player loses X life.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Sorcery
As an additional cost to cast this spell, pay X life. Each other player loses X life.