Builds that need new gears/cards?

[Mister Midnight]

The only gear set that I have experience with and I can think of that could use some attention is Ur's. The concentration proc on frenzy to replace the attack boost it originally stated seems a little underwhelming since concentration ends after being hit a few times. Which is frenzy's main downside, garunteed getting hit. Maybe instead of the concentration something that increases the damage output the more HP loss there is? Kinda like a mini grey set.

Would also be cool to see a set for wiz and sage that capitalize on their other element skills. Or something for wiz that gives shadow element skills. Something I think gravity missed out on.