I've been RPing & DMing for as long as I can remember, creating masterpieces of NPC's & other characters...
My greatest being a crossover of two of my most vile villains ever. Being a more insane version of "The Master," from the 1960's -1989 version of "The Original Dr. Who Television Series." One big exception being this version of an Alternate "Master" could regenerate into either sex (before the newest version of The Dr. Who Series where "The Master" as well as "Dr. Who," regenerate into "female" versions of themselves.
Anyways after a launch of the cortex bomb which she helped create this "Master," created a crossover version of Cybernetic Nanite Robots which were a creation of his from stolen Cybermen technology & relentlessly brought to life through the "Time Vortex" energy of her TARDIS & The Cybermens control capsule of knowledge overloaded even a TARDIS itself! The energy from this massive explosion tore down the walls between dimensions affecting everyone & everything, some chose to ignore & deny this existence while other accept it & try to repair the damage that has been done between dimensions..