>>56481136I think attacking trainers would still be taboo outside of certain events desu, humans getting severely injured is the easiest way to get berserk pokemon (which would likely have to be heavily restrained if not put down), while being careless with how the fights go can lead to a surge of pokecenter visits. Both of these could get the league jannies to come down on them regardless of if they're sanctioned.
Trainer + Pokemon events could be a thing at those tournaments anyway, but underground scenes would probably be more focused on non-standard battles.
>Trainer + Pokemon 2v2 with various ground rules (e.g. humans have TKO clauses), assuming humans can take a few attacks from an average pokemon without getting fucked up (anime/game rules rather than grimderp rules)>Cage Match battle royale with several Pokemon>King of the Ring 1v6 (or higher)>TEAM DEATHMATCH with varying degrees of trainers (e.g. 6v6 with one trainer on each side vs 6v6 with 6 trainers per side)>Non-standard tournaments like Dodgeball 