Overlord of the Balemurk is a mythic Enchantment Creature — Avatar Horror card from Duskmourn: House of Horror (DSK), collector number 401. Current market price: — (foil $330.66), TCGplayer market prices via Scryfall.
Impending 5—{1}{B} (If you cast this spell for its impending cost, it enters with five time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.) Whenever this permanent enters or attacks, mill four cards, then you may return a non-Avatar creature card or a planeswalker card from your graveyard to your hand.