One born from anothers magic

That night i see a TV on in my room and the picture is not fuzzy but very clear.....and i see someone that could resemble Pinkie Pie but just Sad and Insane. I put on my Glasses and reach into the TV and i fall inside the TV. "Where am i?"  "I sense someone inside here" as i wonder into this world i see a door covered in blood and dead bodies hanging from the ceiling and the blood is written saying Life is a Party. i open the door but before that i hear a voice "I am Thou.....Thou art I the time has come to release this power sealed within your heart" i smash the door and a tarot card as i summon a beast that calls it's self Omateratsa........Master of Shadows.  i hear a voice from down stairs "Whooos there??" I walk down and see a room covered in blood and filled with skulls of dead ponies and the other Pinkie Pie is strapped to a table about to be cut open.

Scott: "DEMON you are a fake! nothing but one!" i sense more Darkness flowing into the Other Pinkie Pie. and the Real one is out cold. But the Other Pinkie Pie is a monster  Pinkamena: "OOOOH a new pony for my  cupcakes, will you help me little Scott?" I hold my blood sword in defense i think what can i do to attack , but before anything happens she grabs me. and then throws me around the room like a toy. Scott: "Damn this hurts so much." Pinkamena: "Oh stay still and it won't hurt." then that tarot card appears agian and i smash it then that monster uses a skill called Ragnarok and a huge burst of flames hit her and deals severe damage and causing her to fall over. then i rush at her stabbing at her in the head and then when i stop i place my sword in the ground then Pinkie Pie wakes up and the other Pinkie gets up silent.Pinkie: "Wow i never realized how much pain i have felt inside that it led me to come to this. i should really accept that this is Pinkie Pie. and you are you Pony who is reading this." then her other self monster like mines.........a Persona, hers is a Joy filled  Pony with alot of Party items on it. Me and Pinkie then leave the TV world through other TVs....and we both end up in my room.Pinkie: "That was so weird and scary i was confused and i really thank you for saving me...."  She seems to keep on talking but then Luna walks in and questions what is happening, i then explain to Luna what happened then i Fly Pinkie home and sleep for a little while longer. But i wonder what just happened