Crown of the Sundered Dreamer

According to Molak, Father of Magic, the Crown of the Sundered Dreamer is supposedly the most powerful artifact that can be made in all creation, and contains a reality bending spell that can be used exactly one time. Once the crown is placed on one's head, it is unsure of what happens, but it is something so mindbogglingly monumental that it is capable of eclipsing the powers of creation. The only way to power it was apparently through the Eyes of Creation, and would take so much mana it would exhaust the inexhaustible, incalculably infinite energy of the Void. The actual artifact was made by the siblings Molak and Erynols and was intended to be a gift to be given to their father, but due to Jason Blackthorne slaying Vermithrax, this never came to pass, not to mention that the Dancers never got all the eyes of creation, and the closest they came managed to get them annihilated by Divankul Dul-Sansiska. It is unclear if Vermithrax ever even noticed his priests were creating such an artifact for him, but he was probably far more concerned with his other plotting.
The Crown apparently still exists, somewhere floating off in the vastness of the Void, only brought to about two-thirds its true strength from the other eyes of creation that were poached in the midst of the Demon War, but missing Divnakul Dul-Sansiska's and the Eyes of Dawn and Dusk, as well as the central gemstone of the Heart of Obscura. It will most likely never be found, and even if it could, it would take a god to wear it in its full glory, as it was made for a god, and they alone would have had the strength to withstand its awesome power.