Sylish releases a calming aura from its lips while swimming to draw prey near. Once close enough, it bites them with teeth capable of crushing ore in an instant.
The sound produced by Sylish's bruxism has an interesting effect: As it grinds its teeth, the specific frequencies produced help calm agitated people. Recordings of Sylish's teeth-grinding are sometimes used to help people sleep.
When it unleashes its psychic power from the protuberance on its head, the grating sound of grinding teeth echoes through the area. It sends a soothing aura from its ribbonlike feelers to calm fights.