Originally Posted by Fat EspeonX
Are 31 IVs especially necessary beyond 100 wins, it takes a ton of time to find a good one...?
Speed is the most important, followed by probably Attack and SpA. HP and Defenses aren't as relevant on sweepers obviously, unless you're really crunching numbers to survive some specific threat.
Meeting certain speed tiers is very important though as going first can be the difference between winning and losing.