Brachydios

Description

An aggressive species of Brute Wyvern with a deep-blue carapace.
The volatile green slime covering its head and powerful forearms
can be primed to explode by a chemical agent in its saliva.

A symbiotic slime grows on the head and forelegs of the Brachydios.
Impacts cause the ooze to change from green to yellow to red
before it explodes, scattering spores and dispatching enemies.

Although a slime mold covers this creature’s entire body, the mold
is only visible on the head and forelegs. Angering this monster
activates the mold and causes its entire body to turn yellow.