Kami of Celebration is a rare Creature — Spirit card from Neon Dynasty Commander (NEC), collector number 59. Current market price: $1.12, TCGplayer market prices via Scryfall.
Whenever a modified creature you control attacks, exile the top card of your library. You may play that card this turn. (Equipment, Auras you control, and counters are modifications.) Whenever you cast a spell from exile, put a +1/+1 counter on target creature you control.