Deathknell Kami is a common Creature — Spirit card from Saviors of Kamigawa (SOK), collector number 65. Current market price: $0.07 (foil $0.47), TCGplayer market prices via Scryfall.
Flying {2}: This creature gets +1/+1 until end of turn. Sacrifice it at the beginning of the next end step. Soulshift 1 (When this creature dies, you may return target Spirit card with mana value 1 or less from your graveyard to your hand.)