A more serious version of my last deck with more intention of winning the deck removes some fluff cards to fit in the Dark Dragoon combo.
Just some minor stuff
Hypothetically you don't absolutely need the full Dragoon package since King of the Swamp can fill in for Dark Magician and you are running 10 effect Dragons it's actually possible to summon Dragoon with regular Poly fairly frequently however Verte combo is obviously more consistent.
Go into Spirit Dragon -> Spark Dragon -> Cloudcastle for True King of All Calamities plays.
One for One, Raigeki and Feather Duster could all be removed for Ash Blossom's