Power of the Tributed When you sucessfully Tributed Summon "The Winged of Ra", its ATK will becomes the sum of the ATK of the Tirbuted Monsters, and its DEF will becomes the sum of the Tributed Monsters.
Use King of the Swamp depending on what you need. You can send it to the Graveyard to get Polymerization or use it as a Fusion Substitue. It's recommended to have more copies of this card and replace other Fusion Substitute monsters.
Don't destroy his monsters so he won't deck out faster than you.
Hazy should work too. With Beast Rising to increase the ATK of Hazy Flame and keep destroying Hydrogeddon/Oxygeddon so he won't be able to summon water dragon and magic cylinder & riryoku are target but hazy prevent any targeting by ur opp. Card effects.
The only thing that ends up killing you in this fight is Magic Cylinder. Unless he does some shenanigans with Carbongeddon + Water Dragon, your almost never gonna see something super scary. WD isn't that bad a card to fight since its effect is only useful against pyro/fire monsters.