Mathmech

This deck aims to use the newly released Mathmech Circular to generate immense advantage and set up powerful boards turn 1 and OTK turn 3

I only run 1 Mathmech Multiplication because that is all you need for this deck, ideally to go into Accesscode Talker targeting either Heatsoul or Transcode Talker to get to 5300 attack and then double it for 10600 attack, for an easy OTK with Accesscode popping everything else on the board

I run Geomathmech Final Sigma because its really big and hard to remove while setting up an OTK using Multiplication and possibly Addition too if it's in your hand

I run Mekk-Knight Crusadia Avramaxx as a link 4 to go into using I:P on your opponents turn as it protects your other monsters from battle and is untargetable.

I run 3 Ash Blossom, 3 D.D. Crow, 3 Veiler, 3 Impermanence and 3 Dark Ruler No More and I feel as though these are all hand traps and going 2nd cards that most if not every deck should be playing (You could also play Psy-framegear Gamma, a very good going second card but i would personally put it in the side deck for when you know you're going second. You could also play Forbidden Droplet but I personally think that Dark Ruler No More can do enough without needing to get rid of your own cards too)

Some unique side deck choices could be Mischief of the Gnomes just for Spright as it is going to appear literally everywhere but it is a bit slow.