FusionDex

Klefrona ignites its many wings in battle, the flames burning twice the size and taking the form of flaming keys. The keys within its wings cannot be removed, and Klefrona responds violently to any attempts to do so.

A sea of fire engulfs the surroundings of their battles, since they use their six wings to scatter their ember scales. It never lets go of a key that it likes, so people give it the keys to vaults and safes as a way to prevent crime.