Kami of Transience is a rare Creature — Spirit card from Kamigawa: Neon Dynasty Promos (PNEO), collector number 197p. Current market price: $0.60 (foil $0.87), TCGplayer market prices via Scryfall.
Trample Whenever you cast an enchantment spell, put a +1/+1 counter on this creature. At the beginning of each end step, if an enchantment was put into your graveyard from the battlefield this turn, you may return this card from your graveyard to your hand.