Lys Alana Dignitary is a uncommon Creature — Elf Advisor card from Lorwyn Eclipsed (ECL), collector number 180. Current market price: $0.23 (foil $0.28), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, behold an Elf or pay {2}. (To behold an Elf, choose an Elf you control or reveal an Elf card from your hand.) {T}: Add {G}{G}. Activate only if there is an Elf card in your graveyard.