Aurorus has a 4x weakness to two common priority moves; Bullet Punch and Mach Punch. It can be easily walled, but isn't completely worthless.
248 HP/252 SpA/8 SpD
Modest
Refrigerate
Tri-Attack
Thunderbolt
AncientPower
Freeze-Dry/HP Fire
Viable items include; Life Orb, Choice Specs, or Weakness Policy if you feel Aurorus can tank a hit.