Starlight Spectacular is a rare Enchantment card from Unfinity (UNF), collector number 28. Current market price: $0.55 (foil $1.02), TCGplayer market prices via Scryfall.
Parade! — At the beginning of combat on your turn, choose creatures you control one at a time until each creature you control has been chosen. Each of those creatures gets +1/+1 until end of turn for each creature chosen before it. (Places everyone! The first creature in line gets +0/+0.)