Evergrowth

Evergrowth by its name is from "Ever" which mean at any time, and "Growth" which mean something that has grown or is growing, or by mean "grows at any time". It was originally a stone which contain a colony of strange microscopic creature which has an ability to repair anything lose from them, these feature are used by them to protect them from dangerous such as erosion, earthquake, etc.

Rarity
Legendary

Abilities
Slowly regenerates health.