Disclamer: I don't own Pokemon the anime, manga or anything, but I own this plot.
On the lonely mountain of Mount. Silver. There stood the god, the god of speed no less. The God of Speed was betrayed by his best friend and even his own mother because he was a weak Pokemon trainer they said so because he had never won a league. The God named was Ash Ketchum. He was thinking about the day that he was betrayed.
Flashback 5 years ago 3rd person POV
Ash was with his loyal yellow mouse Pokemon, Pikachu. They were running to Pallet town after the Kalos League. He came in the finals but lost Alan at the end. He was returning home and thinking there was going to be a celebration. Mom, I am home said Ash to his mom, Delia. There he saw Misty, Brock, Max, Tracey, May, Dawn, Paul, Gary, Iris, Cilan, Trip, Serena, Clemont, Bonnie and Alan. Hey guys why are you all here said Ash. "Why are you guys here" said Ash. "Ash, we think that you should give up your dream of being a Pokemon Master"said Brock shocking Ash. "Don't listen to him Ash you are a amazing trainer and don't give up your dream" said Paul shocking the traitor. "Why are you on his side, Paul" said Dawn. "Ok who believe that I should give up my dream of being a Pokemon Master stand near the door" said Ash, he continued "And those who think I shouldn't give up then stay where you are". He saw Misty, Brock, Max, May, Dawn, Iris, Delia, Serena go near the door and he saw Tracey, Paul, Gary, Cilan, Trip, Clemont, Team Rocket, Bonnie and Alan didn't go near the door. "Mom you too" said Ash that he was angry and raging a lot in his mind that even his mother thought he was weak. "Team Rocket why did you didn't betrayed me" said Ash surprised that Team Rocket believe in him and angry that his own mother didn't. "Twerp you know we have been enemies and after what we saw we are quitting Team Rocket and we save the world together and stop evil teams more than once and that's why" said Team Rocket trio. "Max why are you siding with the weakling" said May. "How could you May and he isn't weak and I would never betray my idol" said Max. Then a blue lighting appear and it took everyone expect the traitors.
With Ash (Flash haven't ended yet)
"Where are we" said Clemont. "Clemont you are in my lair" said Ash but his true friends didn't know it was him because he was in his God of Speed form. (Imagine Ash as Savitar from Flash). "Who… are… you…" said Max very afraid. "Het guys I am the one who got betrayed by his friends and you know me" said Ash giving them a hint to guess who he was. "Ash Ketchum" said everyone. "Bingo, you are correct and I am in my god form" said Ash shocking everyone. "Hey twerp what kind of God are you" said Meowth. "I am the God of Speed and also the strongest of all the gods including Arceus and I am the one who brought you here and I didn't use any kind of teleportation, I just use my speed to transport you here and the time was instant" said Ash shocking everyone that Ash can travel and transport them in the speed of instant and they were also shocked that he was strongest god out there and he was stronger than Arceus. "So Ash you are going to get revenge on the Traitor right" said Alan wanting to know what plan he has in mind. "Yes, I will get revenge on them and I will train all of my pokemon here and just so you know I transported all of our pokemon here and there were be a tournament called the League of Legends and it will be held the next five years and whoever win that tournament will be crowned the Pokemon Master and I can see in the future and to answer your question I didn't look into the future until know just after I got betrayed" said Ash shocking and surprising everyone that he can look into the future and he know the exact time and place when it will happen.
Flashback ended and Present Time 3rd Person POV
"Ash, there was Pidgey that carried this letter for you" said Bonnie. (Ash Fake name is Dark).
Dear, Raiden and his friends
You are invited to the League of Legends. It a tournament where the strongest trainer in the world are invited to compete and the winner will win 1,000,000,000,000,000,000 pokedollars and most importantly he/she will be crowned the Pokemon Master.
P.S Ash it took me forever to find you and you are a god nice and please compete or I will order my man to come and seize you and 'they' will be there. And don't let your anger take over you. – Scott and .
"Hey guys time has finalyy come to prove the Traitor wrong" Ash said to his Pokemon and they all roared very loud.
"Hey everyone we have been invited to the League of Legends and let's prove the traitor wrong" said ash to his true friends.
"Yeah, the traitor won't know what hit them" said Gary very happy that he can kicked the Traitor ass.
"Where is it Ash" asked Clemont wanting to know the location.
"It is in Sinnoh and Lily of the Valley of the island" said Ash answering Clemont question.
"Alright let's head there now" Ash very excited.
"Alright race you there" said Paul as he rush of in red lighting (like Flash lighting) (Ash gave all of his friends ablity like the Flash).
"You are on" said Ash as he transformed and ran in blue lighting and passing Paul in an instant and arriving at the League of Legends instantly.
After about three hour all of Ash friends arrive at the tournament. Then Ash saw his friends and greeted them and Ash has a very different look too.
"Hey look guys is the Traitor" said Trip quietly and only Ash and his friends heard it and May bumped into Ash.
"Hey apologize for bumping into me" said May very angry.
"No why would I" said Ash pissing of May.
"Hey I challenge you to 1v1 Pokemon battle and if I win you apologize and" May said trailing off.
"And if I win you piss off" said Ash wanting them to leave.
"You got it" said May and she pulled out a pokeball and Ash thought 'this isn't going to be a fight'.
Sorry for the cliff hanger. I will be updating it.