How to fix Wracks?

Well Wracks are basically the igors to the homunculuse's Frankenstein. Maybe give them a rule called "IT'S ALIVE!!!!!" (Insert some type of buff effect for other units here that improves with the number of wracks in the unit. Maybe a reroll of FNP inside 6 inches or something..)
I have a mental picture of the tv show M.A.S.H. as played by a cast of particularly sarcastic wracks! Complaining about having to stitch those silly wyches back together while insulting each other !! They may go out and kill stuff, but they are primarily mad scientists in training/ surgeons assistants. It would be cool to reflect that in the rules!