With the end of the first ever Genesys Championship, I've got a feeling that Konami is going to start printing out some structure decks for it. I may be speaking only to myself, but Dream Mirror is too fun of an idea to pass up. It's got an amazing playstyle, being able to cause headaches for your opponent, and with some support, can be amazing in the right hands.
All in all, the only Genesys points you are putting in are the 100 in the form of Bagooska. The deck can run amazing still, to the point you could sub a ton of handtraps in or other fun items. I simply put in the ones I've been using myself.
In case you are unfamiliar with Dream Mirror, here's basic info on it. Your monsters have a "dream" and a "nightmare" variant. You get these variants by tributing one variant while you have the correct field spell on either field, and special summoning the other from your deck. While this might not seem to great, the deck has some great counters for this. Dream Mirror Recap returns all your tributed monsters to the deck, while Dream Mirror Hypnogagia sets a copy of both field spells on the field, one on yours, the other on your opponent's. Both field spells have a passive effect to depending on if you control them or not. If you control Dream Mirror of Joy, your opponent cannot target any of your "Dream Mirror" monsters with card effects or attacks except the Dream Mirror monster with the highest level. This effect only works if you have a light monster however. Dream Mirror of Terrors deals your opponent 300 Life Points every time they special summon as long as you have a dark monster. That isn't too big of an issue. Your level 3's and Fusion monsters act as both attributes.
Buio, Luce, and Mutiny in the Sky all act as ways to get your Dream Mirror Fusion's out and keep your deck full, as well as provide some extra security.