This deck focusses mostly on a three card lockdown: Starduston, Mystic Mine and Anti-Spell Fragrance. With all of them on the field, your opponent can not: (Attack | Special Summon | Set monsters | activate Spells/Traps ).
In other words, they can do nothing. This far, I could only make out two cards that could threaten this combo: Volcanic Queen and Galaxy Cyclone. Both of those are run very rarely if ever. Normal Kaijus don't work because your opponent cannot special summon. Sphere mode and Lava Golem don't work because you never want to have more than one monster on the field after resolving your combo. And other Spell/Trap removal options don't work because they can't be activated from the field.
Your core strategy is this:
Summon House Duston/Stygian Security
Run into the enemies monster and special summon as many Dustons as possible to either side of the field. (make sure to give your opponent at least two dustons, except white or house duston).
Activate Mystic Mine and set Anti-Spell fragrance.
Activate Ant-Spell Fragrance during your opponents draw phase and Viola, you won the duel.
Now don't attack but wait for your opponent to deck out, as to not accidentaly blow up Starduston or Mystic Mine.
390
360
240
660
