Would something bad happen if rock Arceus was un-banned in Monotype?

Rock teams are currently the least used team in Monotype, and rock Arceus isn’t very good. I think if rock Arceus was un-banned, rock teams would get a little bit better, but it’ll have very little effect on the teambuilding choices made by people who use other teams. So am I missing something and rock Arceus would really be overpowered, or would it actually work and Smogon is too lazy to suspect test it?

By the way, this is my 200th question. Thanks to this site and all of its helpful users for teaching me a lot about Pokemon.

Pleaselog inorregisterto add a comment.

Just because mono-rock is underpowered doesn’t change the fact that Arceus is an overpowered Pokemon. To answer your question, unbanning Arceus-rock won’t automatically make mono-rock overpowered, but it won’t happen because Arceus alone is overpowered. It’s like unbanning Kyogre or something in OU, but only if the rest of the team is NFE. Obviously, Kyogre is still overpowered.

If Arceus with the Stone plate was “unbanned”, Rock-type teaming would definitely be better with its stats (120 in every stat) compared to most Rock-types' slow speed. But, it would be unmatched by the other Rock-types' high Defenses.