Unearth exiles the creature once the turn has ended or if it would leave play
These are cards like Gorion, Wise Mentor, Storyteller Pixie, Edgewall Innkeeper, Chancellor of Tales, or Lucky Clover
Now I know all about one of the most nefarious villains in the multiverse
I want to say that any tokens deck with a four plus mana Commander is happy to play this, but I really dont know if it does quite enough
Take a look at some of these early examples: Chaos Orb : Just look at that floating brain
Druidic Ritual and Sudden Reclamation for a creature and a land, Eccentric Farmer/Pothole Mole as creatures with the same effect, Roots of Wisdom for elf typal decks, Crop Sigil as a self-mill engine, and Say Its Name if you want to cheat Altanak, the Thrice-Called from your library