Potential Energy

I've decided just now we need more invertebrate legendaries. How many are there in existence? Giratina maybe... uh... ... hm. mmm...?
Yeah we need more.

Navex's name derives from Navitas, (one word for) energy in Latin, and Ex, as in E×1/M=C^2, which in itself is a rewriting of E=MC^2.

Navex, in this forme, is stripped of nearly all of its essence and is considerably weaker than it is in its Guardian Forme. However, this does not mean it is to be underestimated, as it will quickly slip into its Guardian Forme and unleash hurricane-force storms at a moment's notice. It hides at the bottom of the ocean, withstanding crushing pressures with ease, and only surfaces in times of need. It can stop tsunamis dead in their tracks and circle the world three times in a second, ripping clouds in the atmosphere into ribbons hundreds of miles long. Delicate statues carved in its likeness are crafted in coastal towns and traditionally they are sent to the bottom of the ocean in hefty nets to be blessed. The statues are washed ashore with gleaming crystal shells like Navex's water and represent a large tourist attraction for these towns. Possession of one is said to give its owner more energy, motivation, and clarity. 

Pokemon (c) Game Freak, Navex and Art (c) Me.