Dwynen, Gilt-Leaf Daen is a uncommon Legendary Creature — Elf Warrior card from Foundations (FDN), collector number 217. Current market price: $0.34 (foil $0.38), TCGplayer market prices via Scryfall.
Reach (This creature can block creatures with flying.) Other Elf creatures you control get +1/+1. Whenever Dwynen attacks, you gain 1 life for each attacking Elf you control.