Just want to share my latest interation, and now I can say that it is Uber Viable.
I am not exactly good mechanicaly as you can see in the video, and never did much atempts on uber bosses yet.
Just did Uber Eater of the Worlds with it, gonna tackle Uber Uber Elder and Uber Maven next.

POB:
https://pobb.in/yOB0nIvMTWAC

(i think POBB doesnt import the impossible escape passives)

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Videos:

Mapping: (wasn't trying to be fast, but now i can be way faster).

https://streamable.com/f4gyvj

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Elderslayers: (with about 30% less dps than now).

https://streamable.com/zen8h2

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A DROX (with about 40% less dps than now)

https://streamable.com/adxiqo

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Uber Eater (white - all portals used because I suck).

https://streamable.com/lzsncf

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I only need a way to generate some frenzy charges now, maybe with some charges mines, i don't really want to use more buttons, not like I use much in this build though.