isn't it hard lvling up on The Last Castle when u just start? well this is the post that helped me lvl up really fast
tip 1.always start off as warrior until lvl 27 i recamend lvl 30 though
tip 2.always get rage then the Fast recovery for rage then get the mighty dash then after burn then stomp then burning wave then stunning hit then heavy hit then berserk
thats all i hope you find this useful :)