M'Odo, the Gnarled Oracle is a mythic Legendary Creature — Zombie Elf Wizard card from 2017 Heroes of the Realm (PH17), collector number 3. Current market price: $99.00, TCGplayer market prices via Scryfall.
Eminence — {X}, Discard a card: Target player reveals cards from the top of their library until they reveal a creature card with converted mana cost X or less. Put that card onto the battlefield under your control, then that player shuffles the rest into their library. Activate this ability only if M'Odo, the Gnarled Oracle is on the battlefield or in the command zone.