Leaf-Crowned Visionary is a rare Creature — Elf Druid card from Dominaria United (DMU), collector number 167. Current market price: $5.41 (foil $5.14), TCGplayer market prices via Scryfall.
Other Elves you control get +1/+1. Whenever you cast an Elf spell, you may pay {G}. If you do, draw a card.