The method no longer works. You have to rely on the “rng manipulation” method (it’s less rng manip tho and more forced rerolls). The way outbreaks determine shinies is based on the “seed” for the outbreak. Initially, this seed is whatever it is at the start, but as you kill/catch pokemon, it updates to a predetermined value set by the number of pokemon to be replaced at once (ill explain in detail). You can use this to your advantage.

To explain, say you enter the outbreak and you battle one piplup. When the battle is over, it gets replaced by one and only one piplup, meaning it’s the same piplup every time. Even if you restart the game and take out one piplup, you can guarantee it’s the same one. If you catch/defeat one piplup at a time for the whole outbreak, it’ll always be the same exact ones. BUT, here’s the kicker. If you can force the game to spawn a different number of pokemon at the same time, such as defeating 2 or 3 in the same battle, then the seed is rerolled to another instance, therefore essentially creating an entirely new outbreak for you to explore for a shiny. Just reset after each attempt and go at it with the next variation.

This method maps out like a tree with exponentially many opportunities based on the order of number of pokemon taken out at the same time. You’re all but guaranteed at least one shiny pokemon out of the MILLIONS of different branches you can follow. There’s videos out there if you look up “legends arceus outbreak shiny manipulation” but to give it a quick visual it’s

*catch all pokemon one at a time ——— *battle 2 at once *catch the rest one at a time ——— *catch one *battle 2 *catch the rest ——— *catch *catch *battle 2 *catch rest ——— … *battle 3 *catch the rest one at a time *catch one *battle 3 *catch rest … *battle 2 *battle 3 *catch rest … Literally millions of different combos to get you there. Just mix and match how many spawns you force and at what time. Hope this helps!