Mathmech

The deck is about to otk your opponent in 1 hit kill, that can be done when you got in second turn

but if your opponent let you in first turn, then there is no wise if you summon final sigma , all you have to do is summon Cyberse Wicckid because that's will help you add more tuners mathmech when you special a cyberse to it's link arrow you can summon them with 2 mathmech on the field

Balance Lord is the most important in Mathmech deck so i put it in 3 copies, because the combine kombo with Cyberse Wicckid will make the field flooding with many monsters, that would be ended with Cyberse Wickkid in extra zone, Splash Mage, and Ip: Masquerena ,you need to banish Balance Lord by Wicckid effect, then that monster can add Mathmech tuner, you better add Mathmech nabla then special summon it by effect Balance Lord, you need another cyberse monster other than Cyberse Wicckid and Nabla for sumoning Link Devote, that monster for required for being tributed by effect nabla, after that you could be able to summon Splash Mage use it effect, special cyberse lv 4 and then xyz it into Primathmech Alembertian add trap card Mathmech Superfactorial, when in your opponent turn started you could be able to summon xyz mathmech trishulla (Primathmech Laplacian) by using Mathmech Superfactorial, that monster will make opponent lost 3 cards atleast.

plus if it used material with Mathmech Diameter that could negates 1 card on their turn.

Anyway there is still no end, with that cards on the field, you cold be able to bring strong monster like Darkfluid or Avramax

3 cards with Lightning Strom, the reason because the deck only had 1 continous trap card, Mathmech Induction that could be easily to remove it from the field when you control Mathmech.

2 or 3 kaiju, you know that's how usually used to bring out annoying monster from opponent field, also that's good to to tribute def monster because Mathmech need to attack a monster in attack mode.

SIDE DECK : you can switch game play from your match game , that's make your opponent will unexpected this because it could be possible your opponent prepare to anticipate your game prevent for summoning Avramax or Darkfluid, and then there is  Crystron Halqifbrax, T.G. Librarian,  Formula Synchro, will bring Quasar the monster that always makes people fear, is easy to make that play with this deck

Magical Mid Breaker, you now that cards good for protecting your monsters from being targetted or destroyed by card effect, that card is for purpose to make Final sigma Mathmech boss monster with lv 12 easily to come out, becuase the synchro materials is being protected

3 nibiru, Yeah i hates to when people try to flooding with toon of negates monsters

i am forgot with counter trap in main deck, that is Red reboot, yeah that card can stop from annoying deck like Altergay and Eldich for a moment, and then hit them with one turn kill by Final Sigma

i guaranted if you know how to play with this deck, you even can take down an annoying monster like Dragun