Memnarch is a mythic Legendary Artifact Creature — Wizard card from From the Vault: Lore (V16), collector number 7. Current market price: — (foil $5.77), TCGplayer market prices via Scryfall.
{1}{U}{U}: Target permanent becomes an artifact in addition to its other types. (This effect lasts indefinitely.) {3}{U}: Gain control of target artifact. (This effect lasts indefinitely.)