Your party does not hold Pokémon. It holds memory addresses . When you catch a "Pokemon Messed Up Version -XXX- -v2.0- -hulster-", the ball shakes once, then displays the message: "You caught a mistake."
Corrupted Hall of Fame entries after beating the Elite Four. Pokemon Messed Up Version -XXX- -v2.0- -hulster-
This isn't a walk in the park. Gym leaders and rival trainers utilize competitive-grade AI and move sets, forcing players to strategize rather than just over-level their starter. Your party does not hold Pokémon