Unit Enhancing/Breaks and Loyalty

Taken from the game's help section.

Breaks and Loyalty
Breaking a unit will allow you to increase its HP (health) and ATK (attack power) past its max stats. As with enhancing and evolving, you will need to set a base unit. Breaks also cost Spirit Gems.

Spirit Gem 「ATK」 will increase Attack Power. Spirit Gem 「HP」 will increase HP.

Spirit Gems are further defined by their size. Here they are listed in order from weakest to strongest.


 * S Spirit Gem
 * M Spirit Gem
 * L Spirit Gem

* A unit must be at max Loyalty before you can set it as a base unit for a unit break. * Loyalty increases whenever you use a unit in a quest or battle. * Spirit Gems will be used in order of rarity, from lowest to highest. * Spirit Gems are included as a reward from battles and other events.