When played, you can look at the top four cards of your deck, choose an item that you find there, and add it to your hand
Illustrated by Manuel Castan Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
Mistrise Village and Outrageous Robbery out of the sideboard do give a new angle of attack, at least, though battling against decks with lots of counter magic is still difficult
That said, custom proxy cards are generally not permitted in officially sanctioned Wizards of the Coast tournament play
A genuineKozilek, the Great Distortion MTG card, not a proxy, with completely unique hand painted artwork
Magda, Brazen Outlaw is an excellent Treasure payoff