How to get a quick victory against Mai Valentine at lv 40

I used a Genex-based deck with the key components being Genex Army, Genex Ally Changer and Leeching the Light. The main strategy is just to overpower her monsters by first using Genex Ally Changer to make her monsters Light-type, then use Leeching the Light to add their ATK to all your monsters. When tribute summoned using Genex monsters, Genex army allows you to destroy any card your opponent has.

Genex Turbine boosts the ATK of Genex monsters and R-Genex Accelerator allows you to special summon Genex monsters when they are added to your hand. With a few tries I got all three wins.

Destiny heroes with 3xFusion + Vyon + Trinity.
Did it easily with such deck all 3 in a row. Need mulligan into fusion obviously (Restart, balance, more fusion pulling cards, whatever)

Use SSS.

I did it the dirty way.Odion with trap layer, ONE of any choice traps for 4 and 3 spikeshield and chain. Neraly everytime I got two s&c. Set high att and def Mon in defense and set 2 s&c. They attack, use both of them and vuala.

I used standard ice barrier deck

I used Cyber Angels because Dakini removes monsters from the field without destroying them (so Village doesn't trigger). Clean OTKs on turn 2 or 3