Multitype (arceus)

[Treecko]

Hey, i was wondering how Arceus lv.x's body works.
Would a psychic arceus be just psychic or psychic AND colorless when leveled up?
I would think it's just psychic but then the name of the body points out the other way.

Thanks

 

[bulbasnore]

Looking at the wording of the Body, it's clear it would be just Psychic, in your scenario. The name Multi-type doesn't figure into the effect of the body, and doesn't refer to 'at the same time' in any case, but rather the ability to take on the different types of the underlying Arceus.