Nightsoil Kami is a common Creature — Spirit card from Saviors of Kamigawa (SOK), collector number 139. Current market price: $0.07 (foil $0.39), TCGplayer market prices via Scryfall.
Soulshift 5 (When this creature dies, you may return target Spirit card with mana value 5 or less from your graveyard to your hand.)