Chaos Dragons

Spoiler:

Notes: I'm not really looking for Synchro or XYZ monsters. I would like it to be focused on Fusion. I would also like to keep it strickly Dragons, but Warriors aren't out of the question. This is an RP deck I may use in the future.

I'd say 3x Exploder Dragon is just too much, especially when it's Chaos themed.
My advice would be to switch an Exploder out for another Lightpulsar, if not 2.

Also, what's Rare Metal Dragon's purpose in this deck? It looks just to be a Dark Beatstick to be summoned by REDMD. If this is the monster's job, better options to consider would be: Dark Horus, Interplanetarypurplythorny Dragon, White-Horned Dragon, and Van'Dalgyon the Dark Dragon Lord.

That's all I can think of to do really.