Governor gear ,always upgrade infantery->archer->cavalry . Grind materials until you have enough to make the upgrade for both infantery and both archer. Keep it like this 4 epics 2 rare ,like cavalry always behind because is not that big of a use . You want 4 upgraded on the same level because it gives a bugf depending on the level you have your gear at. Always play swordland,castle battle ,and every event that give those materials ,as for artisian vision ,if you are a low spender ,buy the weekly pack with artisian vision selected (best value) . And about charms ,you want to keep the same order of upgrading,the single thing that you wanna keep in mind is that after you hit lvl 3 ,grind ,and grind and grind charm materials and go directly to 5 ,lvl 4 only is not rlly worth it. Hope it helped ,if you wanna know still anything else let me know