Hero

Heroes garrisoned in the Hero Throne will join in an attack as well as defense. Each throne can only hold one hero. A hero's health will recover gradually while resting. They can also be healed immediately by using crystals. If a hero dies in battle, they will need continuous rest to recover. Heroes will not be able to participate in any battle until at least 50% of their health has been recovered.

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Hero Level
After earning enough experience, a hero level up. Every ten levels, a hero will have to undergo evolution before continuing leveling up. Heroes can earn an extra skill slot after evolution.

Hero Tiers
A hero's tier determines its level max.
 * Common heroes have a max level of 29.
 * Rare heroes have a max level of 39.
 * Epic heroes have a max level of 50.

Passive Skills
A hero will gain an additional passive skill slot after each evolution. A new passive skill can be learned in this slot and skill books can be used to upgrade this skill.

Skills can be switched at the cost of 10 bloodstones. Switching a skill retains the previous skill level so they can be switched back later.

Each hero evolution brings a free chance to switch or learn a skill. Tap 'Skill Catalogue' under the skill interface to see all passive skills.

Dread Points and Badges
Unlocking a hero for the first time will make the hero available for combat. Subsequently obtaining the same hero will increase the hero's Dread Points. Once a hero has accumulated enough Dread Points, a Dread Badge will be unlocked. Each Dread Badge will increase the hero's attack and HP by 10%. Each hero can obtain at most 5 Dread Badges.