Dawnhand Eulogist is a common Creature — Elf Warlock card from Lorwyn Eclipsed (ECL), collector number 99. Current market price: $0.15 (foil $0.26), TCGplayer market prices via Scryfall.
Menace (This creature can't be blocked except by two or more creatures.) When this creature enters, mill three cards. Then if there is an Elf card in your graveyard, each opponent loses 2 life and you gain 2 life. (To mill three cards, put the top three cards of your library into your graveyard.)