It is very hard to beat tokens going wide as a midrange deck without some sort of mass removal but you don't want to be playing Wraths and lots of your own creatures
But whats more, she can let you free-cast equipment, and she herself dodges Commander Tax in an abusable (if not broken) way
The best colors for this kind of deck are probably Mardu or WUBR, as it gives you access to Smothering Tithe and Wheels, Prying Blade, Treasure Map, Brasss Bounty, and ways to make tokens
You can get several other, better, misprints for that amount of money, and those cards have a much greater chance of appreciating in the future
Da Vincis Designs $50 Super unique look, good cards with no other special versions, I like where this is going