Talk:Meta Trapping/@comment-24053170-20180817195243

Actually there are some pokemon that not even the Master Ball can capture, and that includes hacking the game to make them available to capture-

"(with the exception of the ghost Marowak in Pokémon Tower, Kyurem while it is under Ghetsis's control, Dusk ManeUS/Dawn WingsUM Necrozma at the Altar of the SunneUS/Altar of the MooneUM, Ultra Necrozma at the Megalo Tower and a Pokémon if it's in the semi-invulnerable turn of an attack)."

These pokemon are immune to the master ball and cannot be captured by it, regardless of what you do.