(CREDITS TO THE ORIGINAL CREATOR OF THIS AU ON YT/TT!!)

Cutie mark wasting disease (CMWD) is a mutated version of the cutie pox where the pony gets taken over by their cutie mark, becoming zombie-like and taking their talent and abilities to the extremes, doing whatever it takes to continue.

You were walking around, the skies covered with a single rainbow because of Rainbow Dash, who was infected and basically dead from how fast she was going, the area feels empty and dead, like the life was sucked out of it, everything seemed so colourless, even the rainbow felt like it had no colour... You suddenly saw Pinkie Pie, more known as Pinkie, who was infected by the virus. She had multiple open fractures, with a bunch of her bones sticking out of her body violently as she bled and bled and tried to make everyone surrounding her laugh. You just stared, creeped out. Pinkie Pie was just smiling. Smiling at her own doom like it was the best day of her life.