I love D/D/Ds so here we are
The deck is xenophobic so no other engines except hand traps
Uses all new revealed cards.
Combo can be started through either Zero Machinex or Kepner, or one of the contracts in the deck. (If you DO have some of the contracts in your hand, feel free to try to search Swamp King with kepner, since it is an alternate fusion route). After that, you mostly try to go into Solomon First, before searching with him, probably one of your 4s, but if you seemingly don't need it, search D/D/D Headhunt, and then xyz changing into Tell and if you emptied your scales from machinex through contract with the zero king into copernicus to send lance knight, linking off into gilg, probably having used Tell as well to trigger his effect and send necro slime into the grave. If gilg wasn't negated, put the scales of Ragnarok and Zero King Rage on your zones (0-5) . And pend into a level 4 you have used as material. If negated, you can keep going using necro slime to fuse into Low King Genghis (har har) and then special summon your lance knight either through his effect, or ragnarok if you haven't had gilg negated (though avoid it when playing second, since it halves all battle damage), and tune into clovis, into Siegfried, and ONLY THEN use Ghenghis to bring back Clovis, and overlay into High King Caesar. Somewhere among the line you have probably used Zero Machinex's effect to special summon herself since you destroyed a contract, and you surely have another body, where you will link it off with gilg into Zeus Ragnarok. Use her as an Xyz Change into Deus Machinex.
And with that, you have roughly 2 interruptions from Machinex, 2 SS negates from Caesar, 1 Spell negate from siegfried, and 1 hand negate from Zeus Ragnarok, all at a really good pace, and pretty easy to do even without using Scale. If you happen to have even more materials than you know what to do with (aka 2 extras), feel free to link them off for a second gilg to try to cheat out something from the extra deck too. (WOOO WE DONT DIE WITH A GILG IMPERM ONLY ANYMORE)
Now, what happens if you get board broken, or have gotten a lot of pieces out, but they just keep negating your stuff, and your combo pieces stand there incomplete cause of negates?
When in doubt, we have our new Integration Monster, AND IT'S D/D/D/D GREAT DIMENSION KING ARC CRISIS!
He only needs you to banish one of each summoning method to get out, and it's CARDS, meaning you can also banish your scales if worse comes to worse. He negates every monster effect on summon, with no time limit, and can attack everythin once. Here is where Clovis and Solomon come in! If you banish clovis, your monsters do piercing battle damage this turn, and if you banish solomon, one monster gets a flame wingman effect! So if you have used them and are sitting in either a GY or on your field doing a whole lot of nothing, banishing them will make our Zarc a la D/D/D/D version able to pretty much kill your opponent if these effects come off. I have put this purely because I physically COULD NOT STOP MYSELF from putting him in, and he is basically an "if all else fails" plan, and your opponent has seemingly ran out of negates. Technically if your opponent has ran out from responses (Which i hope he will have after a bit) this is a full on win button, especially if you banished Clovis and Solomon to power him up considerably. So ye.
With your searchers you focus on finding either scale surveyor, gryphon, Orthros if your main tuner got yeeted, where you try to cause burn on yourself to summon him and use him for some big synchros, or if your necro got negated somehow, your swirl slime. Copernicus you almost always summon with zero king since he has no way to special summon himself.
Dark and Bright armageddon are here to have as backup plans with their protections making your opponent have to go through other ways to break your board, and Bright can also be an anti-pendulum beast. Dark can be a huge board breaker if your opponent has enough cards for you to target too. I keep these since rank 8 plays are fairly easy to do, and your main tuner can be used easily as Bright Armageddon fodder,and a lot of you level 8s are D/D/Ds, which can be used for Dark Armageddon. ALSO, if even Arc Crisis somehow dies and doesn't end the game, which can happen, since the dude has no protection except the mass negate, you can place him in your pendulum zone to both have an open scale easy to use, and you can also destroy your contracts to summon all your Armageddons from your Deck and extra deck, making for more bodies to use if all else goes south.