Melira, the Living Cure is a rare Legendary Creature — Human Scout card from Phyrexia: All Will Be One (ONE), collector number 469. Current market price: — (foil $1.69), TCGplayer market prices via Scryfall.
If you would get one or more poison counters, instead you get one poison counter and you can't get additional poison counters this turn. Exile Melira: Choose another target creature or artifact. When it's put into a graveyard this turn, return that card to the battlefield under its owner's control.