Arkeridas

Arkeridas (Japanese: アケリダス Akeridasu) is a legendary Pokemon native to Terria. It is a dual type, but the combination depends on the taken form (Electric/Dragon, Steel/Dragon, Dark/Dragon), with his origin form being simply Dragon-type.

It is not known to  evolve  into or from any other Pokémon.

Physical Appearance
In his normal form, Arkeridas is a large, white, bipedal dragon. He has thin black lines running all across his skin, forming various shapes such as hexagons and squares. His body shape is similar to the Unova legendary Zekrom's, except being larger, and more muscular. Eye colour is naturally blue, glowing when using attacks. His tail is segmented, with three spikes around each segment. The wings are massive, glowing slightly. The wings are like the traditional wings of a dragon. In each form, the spikes, certain shapes and wings change colour. The electric form has yellow trim, the steel form becomes a silver trim. The dark form is different, with the same areas changing, turning black, but the rest becoming grey.