A dark world build that exchanges consistency for hilarity (and the ability to style on your opponent). Do your usual dark world plays (including hand-loops, if you can), link-climbing into Saryuja as soon as possible. Then, use it to dig for Gale Dogra, which you either normal summon or special summon off of Saryuja. Use Dogra to send Cyberdark Dragon to the GY. Keep using the Danger! brigade and darkworld extenders to dig through your deck and put both Necro Fusion and King of the Swamp into the GY, then link-climb into Knightmare Gryphon to re-set Necro Fusion. Finally, flip over Necro Fusion during your opponent's turn (banishing Cyberdark Dragon + King of the Swamp) to make Cyberdark End Dragon.
Is it good? No, not at all. Is it funny to make CED during your opponent's turn? I would argue yes :D