the solution is attacking pattern like multiplayer: only 1 age above and below to you thus no more cold war age players will attack iron ages in fact with this even iron age bases can actually enjy the war.
thanks for all the suggestions but i must say 2 things 1st i only care about main hall legendaries to be more specific university research time reducing ones, 2nd the videos are extremely stupid to watch even if not watching and letting my device runs it while looking away feels as a sin.
lastly...
as you all know marco polo has legendary artifact sale for 6 tokens but can someone explain whats the point of getting it? how many amount should be bought to get legendary artifact for 6 tokens? the 1 percent seems low already.