Mornsong Aria is a rare Legendary Enchantment card from Lorwyn Eclipsed Promos (PECL), collector number 111p. Current market price: $1.09 (foil $1.07), TCGplayer market prices via Scryfall.
Players can't draw cards or gain life. At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles.