FusionDex

While Syleon splashes around in the water, it is able to radiate its calming aura more effectively. It needs to stay submerged for at least eight hours a day; otherwise, its skin risks drying out and becoming susceptible to disease.

Syleon underwent a spontaneous mutation and grew fins and gills that allow them to live underwater. It sends a soothing aura from its ribbonlike feelers to calm fights.