I always loved how simple and effective Mathmechs are! They're not meta, which I like, and very creative, meaning that I can make this deck they way I want it to be. This is my pure version which is a, OTK/Lockdown, both suitable for going 1st and 2nd (Switch cards in Side Deck)
Going 1st-
Starting Hand: Balancer Lord + Any Mathmech monster
Best End Result: Rivalry of Warlords (If you drew it), Mathmech Superfactorial, Alembertian, Cyberse Wicckid, Code Talker Inverted (If you drew Micro Coder), Cynet Conflict (If you drew Micro Coder)
Going 2nd-
Starting Hand: Nabla + Sigma, Addition, or Subtraction
End Result: Final Sigma OTK
Hope you Like and Comment for improvements! :)