It's pretty obvious your experience of Ursaring consists of reading the analysis page. Quick Feet is a great ability, especially since there's no way for your opponent to know it's not Guts until you surprisingly outrun and KO something (savvy players might realize it when they see Toxic Orb instead of Flame Orb, but no one I faced seemed to realize it). SD is certainly a good option, especially for Quick Feet Ursaring. Bring it in on something that will switch out, SD on the switch while Toxic Orb activates, and go to town. Ursaring will almost always go down from Toxic Orb damage before your opponent can lay a scratch on it (protip: use a Wish passer). I haven't used Ursaring since before Platinum was introduced, but I used to use an SD Quick Feet Ursaring on my main team, and it always proved useful on the team.Ursaring is too slow to go and set up; it has Guts already (Quick Feet is honestly useless on it). I'd rather pass some speed or switch it in to a status or ghost move and force a switch and do heavy damage to whatever comes in. I've never tried a BL Trick Room team around it, seeing as it's not as bulky as some other options available.
It doesn't need Bulk Up or SD to sweep, really. Both are wastes of moves that could be used on its array of options.
The best part about Quick Feet on Ursaring is no one knows just how fast it is, and you'll probably get some switch-ins that show that. For example, it isn't fast enough to outspeed max+ Infernape, but it does outspeed standard MixApe, and I KO'ed more than a few back when I used to use it.





















