Savior of the Sleeping 
Creature — Human Knight
Vigilance Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on this creature.
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL