This era thing is a huge waste of time and resources for literally no rewards.
I mean unless you whale the heck out of it (spend a fortune just so you what? Don't have to spend zetas) this era and coliseum are a waste of time. Why even bother doing it when 3 seconds after the unit is released I can have it at lv85 and built up maybe even done with zetas. There is literally zero reason to do coliseum. Your only rewards are barely any pieces to move the unit up one level. You can't even use the unit on a team anyway while it's in era, so there's zero point.
This is straight up the dumbest idea y'all have had. There is no reason whatsoever to do the coliseum. I may just skip it and wait for units to release. Hell one of my guild mates has a lv30 Luke and put it on auto for 2.5 hours just to clear 2. Yeah for what exactly. Less than 250k credits. Also you took away our rewards and put that stupid useless era currency on the reward track. Get that crap off and put the rewards back. That currency is useless, it's barely enough to do squat with anyway. Like who actually fell for this era thing and spent real money on this garbage? CG just scrap the coliseum and probably fire the guy who came up with it..