Time Elemental 
Creature — Elemental
When this creature attacks or blocks, at end of combat, sacrifice it and it deals 5 damage to you.
, 
: Return target permanent that isn't enchanted to its owner's hand.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL