Uber bosses learning curve suggestion.

Greetings, fellow Exiles.

3.25 is not my first league, but it is first league where i plan to take down Uber Eater and Uber Exarch. I created dedicated boss killer for such purpose, but still my character cannot face-tank everything (for example Uber Eater Die-beam insta kills me). Therefore i need to learn mechanics and train to avoid oneshots.
Unfortunately every attempt to beat Uber boss are costly, for example, Uber Eater fragments cost ~1div each.
Therefore i have a suggestion: please add new keystone node on Atlas tree which will turn any boss fight into its uber version without changing boss loot (or even disable loot). It will allow players to train Uber fight without affecting in-game economy.
It will make learning curve easier, and I think it will be fair change, because prior to recent changes Uber bosses was accessibly by selecting specific nodes on Atlas tree, and i think it's unnecessary to penalize new players and force them to spend 5 div for each attempt to learn mechanics.

That's something I don't understand to this day. That Necropolis League should not exist.
T17, fragments, killing Betrayal. Jesus Christ, what a league.