Each FSL (faction skill level) gives you 3% damage resistance against that faction, so it can be useful to increase the FSL of every faction, even the ones you don't play.
You can increase a faction's FSL by having it active during events where one's own faction is not used - that's what most people do, as events give a lof of FSP (faction skill points).
You can also build the cheaper buildings for each faction and use them in easy hunts/MG quests.
Finally, there's the Day of Recruitment where you can get the full recruitment of any faction without having the related castle. As the name suggests, it only lasts for a day, but it's possible to play quite a few battles in that time. |
