Is there any merit to running Venoshock and/or Hex on Mega Gengar in a status heavy team? Does the extra damage even account for anything? Or is it still just 2HKOs on special walls?
In my opinion, strategies which rely on already being on the path to victory should be avoided. Sure, Venoshock can do respectable damage when the enemy is poisoned, but at some point you're going to encounter a player with numerous poison immune mons or an effective cleric and you'll be effectively neutered. 'Win moar' moves are awful things to have when you're losing.