Future planning ONLY: after Pavilion218, guide describes Alter Clone copying party with all252 EVs, then Mewtwo/Mew12v6Holy. Verify installed event before using any of this. Owned frozen Latios115 Box2slot20 already knows Memento. A legitimate one-member Memento-only party could force the clone to self-KO (must inspect static AI/event and eligibility). Travel carrier issue can be solved by depositing other members at a nearby normal PC after flying to Tanzan Cove; investigate Belrose Manse PC and local move deleter availability before changing moves. No such preparation or battle has happened yet. User allows ordinary strategic party/move changes, not game edits. Do not equate this hypothesis with verified execution. Source: https://bigjra.github.io/reborn/ Neoteric Isle. Prioritize finishing Pavilion first.
Pokémon Reborn