By abusing the tweaking glitch and void glitch I created a new route to Arceus which does no longer require not having caught dialga/palkia.
It is very different from the last version, but that's due to completely different ram manipulation.
It works in all versions, allows you to capture Arceus in the Hall Of Origin AND infinitely in Mystery Zone, and is shinyhuntable!
How to tweak:
https://youtu.be/DF7UDrk4Ptc
Join my discord! https://discord.gg/prUAgd5