>>18407901If we were to go by Movie lore, Arceus can switch types on the fly, but similarly mewtwo can switch between megas. Arceus would cheat by switching between dark and ghost, Mewtwo would hang on by using Recover but would ultimately lose to onslaughts of Judgment and Extremespeed.
Game lore doesn't speak so much to Arceus' battle prowess, mostly its ability to create, and similarly mewtwo is known for hiding in caves and not bothering anybody. Much less interesting.
