Fairgrounds Trumpeter is a uncommon Creature — Elephant card from Kaladesh (KLD), collector number 155. Current market price: $0.09 (foil $0.36), TCGplayer market prices via Scryfall.
At the beginning of each end step, if a +1/+1 counter was put on a permanent under your control this turn, put a +1/+1 counter on this creature.