The concept of this deck I build is to quick summon zexal on the first turn and then lock you opponent with the Sekka. In order to being able to do so, I put some cards that supports the strategy. First of all, Legacy of the duelist to limit your opponent setting card (which Is the only thing he can do, after the Zexal's effect succeded). Then Lightning storm, to have your opponent's field cleared when you go second, or when it has some dangerous board. A personal choice, is the Overlay Regen to improve Zexal's attack and consequently that chance to keep it on the field. Another important card of this deck to prevent Zexal to be targeted when activate its effect, is Sauravis which is good against cards like Infinite Impermanence or Sky striker- Widow Anchor. I also put mystic mine to overstop your opponent in some cases For the side deck feel free to substitute some cards with Mind drain, or some drain cards except Skill drain. Prohibition is an evergreen side deck cards that many Players undervalues, but in this deck is good. Another good card could be "Lose 1 turn" because of the timing of zexal and another one could be the new lv 10 Gizmek monster, up to enter in tcg. You have a 9 on 10 chance to put zexal on the first turn with this deck. Enjoy!