I have been trying to read after so long but either my brain is scrambled but I can not make sense of anything that is going on. One chapter the mages do everything, destroy all sorts of equipment and infantry including one shotting trains and railway guns, and so on. next chapters the mages...
I actually supported Grain until he started attacking our MC. Sure, torture for thousands of years deserves revenge but bro come on you attacked Zeff first so don't blame him.