Sun-Dappled Celebrant is a common Creature — Treefolk Cleric card from Lorwyn Eclipsed (ECL), collector number 37. Current market price: $0.09 (foil $0.18), TCGplayer market prices via Scryfall.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Vigilance