The Unknown Wizard

Eminence — As long as The Unknown Wizard is in the command zone or on the battlefield, other playtest cards you cast cost {1} less to cast.
Whenever The Unknown Wizard enters or attacks, look at the top ten cards of your library. You may put a legendary playtest card from among them onto the battlefield. Put the rest on the bottom in a random order.

The Companion of the Wilds

Old Companion — Your starting deck contains only cards from WOE, WOC, and playtest cards. (You may cast this from outside the game if this is companion without paying {3} first.)
When The Companion of the Wilds enters the battlefield, create a Food token, a 1/1 black Rat creature token with "This creature can't block," and a Royal role token attached to a creature you control.