I dunno, I actually felt inspired with the two builds I proposed in this thread and personally I think Cold Caster works better on Open Hand Monk with 3 levels in Winter Walker because, well, you need to have something to use with these penalties.
On another thing, I finally found a good class to pick for the Purple Dragon Rook/Commandant/Boon of bloodshet build combo - Bladesinger Wizard. If only because out of all melee classes this one WILL be bloodied the most. And the image of a nerd beating enemies while bruised and battered is appealing to me.