Life Orb > Choice Band for sure. Choice Band is AC mention tbh. Choice locked ice moves suck and Pursuit is even worse (just let your team get swept by Lucario or Terrakion why don't you?!?!). Ice Punch > Night slash. Everything you want to hit with the dark move you will Pursuit for heavy to fatal damage.
Weavile is NOT outclassed by Scizor. Weavile outspeeds EVERYTHING that it needs to Pursuit. That is deserving enough. Weavile doesn't give a damn if you switch our not because it is going to make it's trap. Weavile traps EVERYTHING that is anti-spikes as well - Espeon, Xatu, Starmie cough cough.
Swords Dance Weavile I haven't tried but should work fine in this metagame. It is fast and Ice / Dark / Fighting is awesome coverage. Most offensive teams don't wanna fuck with it. Again, haven't tried it yet, but it shoulds good with Magnezone.
ImStillGood (Salamence) (M) @ Life Orb
EVs: 252 SAtk / 252 Spd
Rash Nature (+SAtk, -SDef)
Draco Meteor / Flamethrower / Brick Break / Roost