What If Ash was in Pokemon Horizons?

Mega Evolution - Bonds

"Count Oyster and Shōyu?!" Liko laughed.

"Anyway, I immediately said yes." Uruto tried to change the subject, "I wanted to put Master Mayonnaise's words to the test!"

"But, he still wasn't a good battler..." Roy muttered.

"HEY!"

Sableye strikes Escavalier with Power Gem, and Escavalier easily takes th hit due to its large shell. Accelgor sneaks up on Sableye and strikes with Skitter Smack.

Uruto sighed, "Alright fine, I wasn't that great."

Roy chuckled, "I even had to save you."

Crocalor fires off a Disarming Voice just as Accelgor is about to strike Sableye, making it veer offcourse.

"C'mon Uruto, we gotta work together!" Roy cried out, but Uruto didn't hear him, his hands ruffled his hair.

"I don't get it, why can't I get better?!"

"Okay, looks like I'm in charge." Roy muttered, "Crocalor, let's give it all we got!"

"I dunno what, but seeing Roy and Crocalor battle together made me realize what I was doing wrong. I just ran headfirst into battles, but Crocalor and Roy worked together. I figured out that if I wanna be the strongest Pokemon trainer, I need to help Sableye become the strongest Pokemon first!"

"Wow, that sounded pretty wise," Dot commented, "Didn't expect that from you."

"Well, once Uruto got his head back in the game, Sableye did much better." Roy recounted.

Crocalor leads Escavalier near a wall and dodges just before it can strike, causing its blade to be stuck in the wall. Crocalor finishes it with Flamethrower. Accelgor appears behind him and prepares to strike, only to be knocked out by a Shadow Sneak from Sableye.

Roy's eyes widened in shock. "Uruto, you actually..."

Uruto ran forward onto the battlefield, picking up Sableye with joy in his eyes. "We did it! Oh, you did great out there buddy! I am so proud-"

Uruto looked over to see Roy and Crocalor smiling smugly at them. Uruto drops Sableye to the ground, "Uh, I mean, good job."

"Aw, that was cute!" Liko exclaimed.

"You said it Liko, why you toughen up, Uruto?" Ash asked.

"It was so embarrassing, it felt weird that Roy saw me like that." Uruto blushed.

"Well, I do that when I win a match with my Pokemon all the time, there's nothing wrong with showing everyone how you feel." Ash commented.

"Can we get back to the story now?" Dot asked.

"Yeah, so Yellow Blast appeared and ran outside, we followed it and saw Korrina and Master Mayonnaise waiting for us. Yellow Blast was ready to battle."

"The time has come, boys!" Master Mayonnaise exclaimed, "Defeat Yellow Blast in battle!"

"You got this!" Korrina exclaimed.

Yellow Blast readys its stance, Crocalor and Sableye stand on the opposite side of the field.

"This time, Sableye and I were like one." Uruto said with nostalgia, "We actually had Yellow Blast on its toes."

"I mean, Crocalor and I helped too." Roy smugly said, "Especially when Sableye lost its balance, literally."

Sableye successfully strikes Yellow Blast with another Power Gem, Uruto tosses the Sablenite to Sableye. "No more waiting, let's show Yellow Blast our true power!" Uruto taps his Key Stone, transforming Sableye into its Mega Evolution, it struggles to cary the large gemstone. Causing it to fall over and allowing Yellow Blast to knock it out with a Metal Claw.