Burn at the Stake 
Sorcery
As an additional cost to cast this spell, tap any number of untapped creatures you control. Burn at the Stake deals damage to any target equal to three times the number of creatures tapped this way.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL