Basically, you'll want to get
D/D Swirl Slime, D/D Nighthowl, D/D/D Supreme King kaiser, and D/D/D Oblivion King Abyss Ragnarok in your hand. With this, you'll be able to get out D/D/D Flame High King Genghis, D/D/D Gust High King Alexander, D/D/D Super Doom King Bright Armageddon, and D/D/D Super Doom King Dark Armageddon. With both Bright and Dark on the field, your opponent won't be able to target your monsters as well as destroy them with card effects.