New thoughts.
Alternative super for Berserker:
Meteor Impact
The Titan strikes a stance before barreling forwards at astounding speed, knocking back anything that survives. Can be augmented to go further, allow for turning, or to allow jumping.
Stormcaller:
Calamity
The Warlock conjures an aspect of Arc Light, which periodically discharges lightning at nearby enemies. Can be augmented to blow away projectiles, disrupt enemy vision, or last longer.
I really like the Gravity Well so I don't think I can outdo it. I'd be more partial to a bow or what have you if it wouldn't be so much like Golden Gun.