From my limited QP Wrecking Ball mayhem:
More bullets or a faster reload time. Feels like I’m stuck in reloading quite often.
Adaptive shield cooldown dropped by a couple seconds, maybe.
Grapple cooldown dropped by a second or so.
I’m not saying he needs these things nor am I arguing for them, but they are definitely things I have thought to myself while playing him.
He’s a blast, regardless. More on that here -