If Winona is gonna be a DST exclusive character, then she needs to be synergistic with other characters in some way (because if not, why isn't she in DS?).
So you know that scene from The Wizard of Oz, where the rusty Tin Man needs an oil can to start moving? Well, what if Winona can craft an Oil Can and can use it on WX-78 characters to increase their running and crafting speed? This way, you have a good team-up.
It also perfectly fits with her mechanic character.
Thoughts?