TLDR-- Cathode Grace/Current's limitations feel unreasonably punishing at best, and buggy to the point of unplayable at worst.
When she works, she's incredible.
But for reasons I can't figure out, Cathode Grace (and as a result its augment, Cathode Current) is extremely inconsistent in increasing its duration on kills.
Sometimes it's no problem at all! Spending the entire mission maxing it out, turning half the enemies on the map into crispy critters the moment the one schmuck with the initiative to be at the head of the pack touches an Arcsphere.
But sometimes.
No matter how much I am laying waste to the enemy swarms, getting 60% or more damage dealt, more kills than the rest of the squad combined (because gasp, yes, I DO understand how the ability works, kindly keep your condescending nonsense to yourself)...
It utterly
Just
REFUSES
To give me more than 20 seconds of breathing room, at best, or just refuses to give me anything at all and shoves itself onto cooldown.
And additionally, why does it only give you an eight-second window to start with, even at max rank, and a 60-second cooldown if you can't appease its capricious whims? Who thought that was good design?
It's maddening, and I don't understand why.
I don't really have any illusions that anyone's going to care about this complaint, let alone DE.
But hey... a Tenno can dream, right?