Neos fusion at needs to be at 3 so that neos fusions are easier to get out.
Elemental hero Dark neos is a negate, and Air neos allows for clutch victories. Cards like Adoration allow you to destroy monster easier. Also you want cards like sunrise for easy access to miracle fusion and for extra ATK for Hero's. The deck primarily focuses on getting out cards liks, Elemental Absolute Zero- to mask change into Masked Hero Acid (for a clean board wipe) Hopefully with dark law on the field so you banish all of it.