system
Given the following post, respond as if you're commenting on Reddit:
human
[Pokemon] what happens to a Captured Pokemon when it’s master dies?

Sorry if it’s a little morbid... but what happens? There must be many Pokemon without masters when they have died. Do they go back into the wild? Imagine a charizard level 99 beaten the elite four, goes back to where he was first captured as a charmander. The unlucky Pokemon novice trainer with a level 5 pidgey, a level 6 weedle and a level 5 pikachu that encounters the angry lonely level 99 war hero charizard...
gpt
Well its safe to assume that one of three thing can happen.

1. The pokémon is passed down to a close friend or family member which is very common regardless of the pokémon being trained for battling or its just the family pet. Either they serve as a guardian if the person is too young or an addition to the team if its an experienced trainer.

2. The trainer releases them in the wild, the location depending on the pokémon’s species and personal tastes. Now this is a trained pokémon so it has plenty of experience with humans so its very doubtful that it will crush Youngster Joey’s Rattata into a mush just because they entered its territory. At most they’ll just lead them away, fire warning shots, or just stay hidden. Alternatively the pokémon can be released in a dangerous and hazardous area where it can battle all out without worrying about hurting someone.

3. The pokémon is given to a group like a local mom and pop shop that the trainer and pokémon are familiar with to live out its life in peace or to something like the Pokémon Rangers which would allow it to travel around and battle bad guys and help sick/injured pokémon.