Brotherhood Specialties
Brotherhood between some legendary heroes in history will reappear on battlefields, so long as you have specific legendary heroes on the same battlefield, there will be a chance that your heroes can launch their exclusive Brotherhood Specialties.
* Ability attack priority discriminant: Release Primary Abilities → Release Brotherhood Specialties → Release Duel Skills.
Players can see those heroes who originally have brotherhood specialties in the Tavern, and the brotherhood specialty takes up an ability slot. Players who already recruited the specific legendary heroes above that have brotherhood specialties before the version 1.60 update, the system will add the brotherhood specialties to corresponding heroes automatically. If the hero's ability slots are full, then the new brotherhood specialty will merge with a non-primary ability and become a Double-skilled Ability.