If you exile a card to Werewhat's enters ability that is already a double-faced card, you may choose either face of the card to serve as the back face of Werewhat
True fans will also notice a small continuity error in the art: Hook Hands hook is on the wrong arm
It does both of these things for a negligibly low activation cost
You get a one-trick pony here, but you can return from your graveyard to your hand one each of every major spell type, from instants to planeswalkers, but not lands or dorks
If it is night, double-faced permanents with daybound that enter the battlefield without being cast will enter with their nightbound faces up
Well, in real life terms, the terms tapped and untapped tie closely to the rhetorical usage of the phrase tapped out. Our tapped lands represent game objects that have already been used, though we thankfully get to untap them next turn