Dream mirror - Invoked - Constellar

The most playable version of Dream Mirror.

I barely use Dharc and Zombie Vampire, but having an easy and generic link 2 may be usefull in some case and Zombie Vampire works great with Morpheus and Ice Dragon Prison.
You could still replace her with an xyz level 4. I like Castel, but any generic xyz can work : Tornado Dragon, Bagooska, Abyss Dweller, Dugares the Timeless, Time Thief Redoer and Evilswarm Exciton Knight are all excellent choice.
I also considered adding Mudragon and more Invoked fusion monsters, but no more room in the extra deck.

It's still missing some draw power. Allure of Darkness is a bit risky but works.

Ice Dragon Prison can be replace with some random cards like Mirror Force, Compulsory Evacuation Device, Raigeki or whatever card suits your heart.