The spirit of the indomitable restores X% of HP of all remaining Cookies whenever an ally Cookie falls. If the last surviving Cookie is about to be defeated, the Cookie will become invincible for Y sec before the Cookie falls.
Evaluation
* Mandatory for teams that use 실론나이트, healing all Cookies by a percentage of their max HP whenever an ally is defeated, while also granting the final survivor a short period of invincibility before they can be defeated themselves.
* 실론나이트's Tea knight skill Battlemaster can be optimized using this treasure, allowing him to tear down almost any team by himself after his teammates fall.
* Other teams can also use this treasure simply to counter one-shot compositions in Kingdom Arena, assuming they're tanky enough to counterattack.
* However, it's far poorer for World Exploration, as it requires Cookies to fall to have any effect.
