Although this wavekin only inflates to a box shape when threatened, having a fisher's hook through its lip seems to be enough to trigger this response. As a result, they are rarely seen in a deflated state.
This species of fugu puffs itself up into a shape that resembles nothing more than a five-sided box. Coastal villagers in the Cieldalaes are known to craft beautiful and surprisingly sturdy containers from the reflective wavekin's dried remains.