champion levels did not break live... all the doompriests again ;D
they were there because everyone did more dmg bc toa and ppl needed a HP bump.... the chamption abilties were mostly crap, just resist buffs (only really usefull vs legend weapons = solos) and maybe desease was usefull.
ofc on the ARS servers selfbuffs were a thing.
so we basicly already have chamion lvls just you get it for free and do not have to gain them through pvp or pve
still i like to see champion weapon skins here! maybe also via a quest or something so everyone just has one of them