Era Challenges Adjustment Coming

The only "adjustment" needed for the era challenges is to ditch them completely. You can just give out rewards based on the era level of the necessary character and the result will be the same. No tactics will help in beating higher tiers, and the difference is too big to bridge by good RNG. There are no feats that would require thinking about your team composition or play style, like there used to be. It's just an era level check masquerading as a game mode.