mtg card that shuffles graveyard into library Kozilek, Butcher of Truth ($50.96) Price History from major stores Elixir of Immortality MTG -

It has four loyalty, +2 to make a Food, +1 to answer a dork or artifact by removing their abilities and making a 3/3 Elk, also great for Commanders, and then -5 swap stuff, very easy with that starting loyalty and +2 ability

White loves tokens and black easily converts a field of tokens into direct damage via sacrifice cards and Blood Artist effects

Flying plus menace is a great pairing of evasive abilities, and being an artifact creature opens up more synergies that youd see on regular old Ravenous Chupacabra

Like the Archetypes above these are enchantment critters too in case you care

In exchange, your opponent owns Tempest Efreet, which goes into their graveyard