doing some instances and events like: 8 Warriors, 15rs, national treasure... to get caps
doing instance like Save Bluestarnese, Eighteen Copperman... to get some free 5k 10k exp...
also if u have money u could buy training ticket + exp cards to train..

(that is what i do to lvled my fire to lv 198.. i think 180+ reborn did not make any difference from 180+ :D)