Die Young 
Sorcery
Choose target creature. You get 
(two energy counters), then you may pay any amount of . The creature gets -1/-1 until end of turn for each paid this way.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL