Serpent's Soul-Jar 
Artifact
Whenever an Elf you control dies, exile it.
, Pay 2 life: Until end of turn, you may cast a creature spell from among cards exiled with this artifact.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL