Originally Posted by Fat ShakeItUp
honestly this set seems pointless. The ONLY reason that Magnezone is OU is because of Magnet Pull. There's no reason to use Magnezone if you're not using it. There are better special attackers out there, and with no Speed, Magnezone will easily get domlished by Ground-type attacks and rain-boosted Water-type attacks. Also, the calcs provided aren't too helpful since all of the mentioned Pokemon OHKO Magnezone (bar Jirachi, but Magnet Pull Magnezone beats it too).
Not really. Specially defensive Heatran is 2hkoed while it can't ohko back even outside of rain and offensive Heatran is ohkoed on the switch after SR. Magnezone also gets 2hkoed while failing to ohko.
All these, assuming that they switch in on you of 'course.