Hellcarver Demon is a mythic Creature — Demon card from Rise of the Eldrazi (ROE), collector number 113. Current market price: $7.07 (foil $18.59), TCGplayer market prices via Scryfall.
Flying Whenever this creature deals combat damage to a player, sacrifice all other permanents you control and discard your hand. Exile the top six cards of your library. You may cast any number of spells from among cards exiled this way without paying their mana costs.