FusionDex

Golusect appear to carry Relic Vases atop their backs, though they are actually a shell that protects the core that gives them energy. They can withdraw inside of these shells to hide within the ruins that oft serve as their homes.

Golusect are known to infest the roots of large trees en masse and drain nutrients. It is said that Golusect were ordered to protect people and Pokémon by the ancient people who made them.