[Help] Develop fighting AI's to fight against eachother

Hey, I am a pretty beginner at coding (studied a degree where I learned C and C# 3 years ago for two years) so I was wondering if as I am looking to start learning C# and Unity again if I could do it with a course/video guides related to what I want to do rather to pick up a platformer or just one of the very known guides from Unity.

The type of game I want to do, to be more specific the gameplay, (base can be a pokemon-like rpg game just changing the gameplay from turnbased to auto battle) is basically a fighting simulator, where different AI's fight eachother, being able to hold different weapons (that gives different stats such speed or powers)
Example of the type of game I mean:

 

You know, you can have each ai simply select actions randomly. For a start. !Then you can add if/else branchs where it will be trying to detect what to do based on current situation.