>>32548921>But what if I run an offensive variant with Rock Polish?Regice might be able to pull this off with a Sticky Web team, as its speed tier is very underwhelming, at 50 base, which is 199 invested at Modest, reaching a tenuous 398 base Speed which most Pokemon at +1 (and thus scarfers) can outspeed. This is not to mention the fact that even after a Rock Polish and with BoltBeam coverage, it cannot threaten much without boosting.
TL;DR: Regice is suffers because of its poor recovery and typing, which leaves it vulnerable to hazards, VoltTurn cores, and any kind of offensive pressure. Its offensive possibilities are underwhelming, and I challenge you to use Regice and win, even versus a team with no legendaries. Magnezone is certainly not a legendary, and cannot handle it well nonetheless.
I love Regice's design, no hate towards the mon itself, but be reasonable here. If you want to seriously learn, we can have a quick battle on Showdown and you can attempt to use Regice. You can bring all the legendaries you desire if you wish, unless you want to just restrict this to Regice, as long as they are not Uber. Then, we can see if regular mons truly cannot stand up to these Pokemon given legendary status.