Wait for it...
And a selfie, because why not, right?
This, is THE hardest build I've ever done on this world, sorry MantisDrone... (Specially the wings, the wings were a pain in the back hip plate to build, I'm not a robot, PUT DOWN THAT LASER SWORD!!!)
Ok, back to ze showcase, thanks for the idea, SayoriTheIcePhoenix, wow, that's a mouthful, but, ok, this guy would not have been created if some Erik guy didn't teach the robots about medieval fantasy..
It's body regenerates everytime you damage it, like it's common with most bosses, but certain parts regen slower, specifically the wings, it's weak spot are the eyes, they must be hit nine times to be destroyed (not each, both of them count), it is fought in several phases:
PHASE 1: It flies around, dropping plasma from the sky, and occasionally diving to catch you, you must wait for the catching attack, when it dives, you must dodge and climb its tail, then its body, to reach the eyes.
PHASE 2: After taking 3 hits, it starts to fly lower, and slower, now it will try to hit you with its tail (Which is now covered in electricity), and breath plasmaballs at you, be careful, those explode, and launch plasma balls everywhere! It will also slash its claws, when it does that, you must attack its wings, then it will fall to the ground, giving you an opportunity to attack the eyes.
PHASE 3: After taking 3 more hits, it loses the wings completely, and from their stumps, arms grow, making it a land based enemy, it will crawl around, trying to bite you, it will also fire bolts of electricity from its tail, and finally, it will spread plasma around from its mouth, and fire plasma beams that set the arena on fire! You must attack the eyes again, to do so, you must make it hit the walls when chasing you, that will stun it, giving you an attack opportunity!
When it's defeated, light beams will emanate from its body, and it will cause a massive explosion, leaving dead robot parts on the arena.
Full name: MK38 "Wyvern" Ultra-Heavy Aerial Destroyer Automaton