Nice movepool but I wouldn't use that in OU. I like how everyone is comparing it to infernape and think that it will do just as well with the same BST. But infernape is SR neutral while it's 4x weak. Infernape has no 4x weaknesses while it has 2. Infernape has stab close combat, it doesn't. When I see mix sweeper, it's usually something that can break blissey and physical walls. Without stab on a fighting attack, 115 base attack (theoretical), unlikely to have max atk being a mixed sweeper, blissey survives brick break easily and thunderwaves it or just kills it outright after taking 75% switching in.60/115/60/115/60/124. Total 534 (Infernape's). Ice Beam, Bug Buzz, Discharge, X-Scissor, Brick Break, Roost, Reversal, Focus Blast, Baton Pass, Swords Dance, Agility, Nasty Plot, Ice-Type Flash Fire/Levitate/Ice Shell.
I think it's OU material.
Hell, even 600 BST won't keep this thing in OU. BL at best. The only way this is being OU is if it somehow ends up with extremely high speed/attack/special attack base stats (inferior deoxys-A spread 50/150/20/150/20/130 = 520 would help it if it didn't have 600 BST), magic guard, swords dance, nasty plot, close combat, megahorn, ice punch, earthquake, stone edge, night slash, pursuit, ice shard, bug buzz, ice beam, thunderbolt among other good moves in its movepool. Basically the biggest movepool with the best possible moves it can possibly get.