Here's how you can rename a Pokemon in Pokemon Scarlet and Violet
In past games, it was always an annoyance when you couldn't decide on the nickname for a new Pokemon as you get the opportunity after catching it. Worse yet, there has also been the nuisance of deciding on an even better option, but you have no idea how to implement the change nickname method.
Here is everything you need to know about renaming a Pokemon in Scarlet and Violet.
How to change a Pokemon's nickname
In Scarlet and Violet, the changing nickname of a Pokemon is thankfully very straightforward. Rather than needing to go to a specific NPC in a particular location, the "change nickname in Scarlet and Violet" method can be simply completed in the main menu.
All you need to do is press the X button to bring up the main menu, then select the "Check summary" option of the desired Pokemon you wish to rename. Then, as can be found at the bottom of the menu, select the X button once again to choose the "Change Nickname" option. Enter your desired nickname, press "OK", and you have successfully renamed a Pokemon.
Whilst you're still figuring out the game, here is how to upgrade Miraidon and Kiraidon, and how auto-battling works. Speaking of past games, be sure to also check whether the game has Dynamaxing.