An initial attempt to show what this character looks like by Creative Arts https://www.behance.net/creativeartist67

I did not have a clear design in mind, so this attempt, while not final, is within the vague parameters I gave. Those were that it is a sort of cross between Zapados from Pokémon and Dynablade from Kirby.

Notable changes to be made are that ALL pointed and flat edges are to be rounded/smoothed, there is no harness, the entire body is still a variant of Zapados's coloration (but wings are fine as is, the blue/steel look), the sky should be stormy, and there should big crackle of electricity coming off of him.

it is an Exthalnundeir Bird, half bird, half lightning elemental.

This is intended difficult boss for a stage, possessing means to swoop, shock, paralyze, pulverize, smite, and electric flying dash all over players. This will require knowledge of intricacies of how the game works to prevail, most importantly when HP gets low, because it will use a last ditch blinding speed dash several (20!) times in a row, if a player isn't prepared or isn't lucky enough to not get hit by the random vectors of attack, this attack can easily juggle them (All!) to death!