I think it’s different enough, I can’t think of another character with a temporary range attack, but I understand what you mean, keep characters unique.
My original idea was to make desecrate an ult, and have it be modded based on various helix choices, that grant it different effects. It would last a minute, have a 3 second start up, and have a 2 minute cooldown, which would refund partially based on how time was left on the desecrate before you cancelled it.
For its dangerous to go alone, I would make that a skill that could be toggled on and off, represented by the sword being enveloped in black flame, and your Corruption bar would act as its ammo.
I’ve never played as her, but those seem like good fixes to me. I’m sure Gearbox knows how she should be though, I’m just a wannabe game designer, so this is fun to me.

