Specialty

Specialties are special attributes for heroes that grant additional attributes to the hero or the city buildings.

Types
Each Hero has a maximum of 4 specialties: Secondary specialties are randomly selected at first. Players can refresh them by first clicking the lock above the specialty to unlock them and then using Specialty Refreshing Stones (number of refreshing stones needed depends on how many specialties are in total and how many are unlocked / can be refreshed).
 * 1 Primary Specialty unique to his class
 * 1 to 3 Secondary Specialties (depending on hero level)

Each specialty has a level (I-V), each level I-IV requires an upgrade using 1 Specialty point per level, level V requires 2 Specialty points to upgrade. Specialty points are received after Hero promotion or composed out very rare Specialty Stones (or 20 fragments of Specialty Stones Fragments) which can be found as rewards in special events.

Note that refreshing a secondary specialty will give players back the specialty points already invested in that specialty. Those points can be reinvested into leveling up any of the specialties, nothing is lost. However the primary hero specialty cannot be changed nor refreshed.

Specialties fall into 3 categories, which determine the power of the bonuses granted by the specialties, with Advanced being very rare (outside special events):


 * Primary


 * Intermediate (about 2x better than Primary)


 * Advanced (about 3x better than Primary)

List of secondary specialties
The in-game help has been updated to include a "Specialty Gallery" that groups the specialties in Exclusive (hero specialty), Battle and Develop specialties. There are 38* secondary specialties with 9 more added in 2019 under the name "Ancient Specialties"**, 22 of which are Battle specialities and 16 are Develop specialties: * as of March 2019

** 9 new specialties were added during event April 2019