- Remove the Swords Dance set; Drapion is going to have a very difficult time sweeping in this metagame. Ground-types such as Landlos and Excadrill are everywhere, and since they're faster than you, they'll have no problem KOing you with a swift EQ to the face. Even defensive 'mons like Ferrothorn defeat you, since you'll fail to do any significant damage with EQ, while it can stall you with Leech Seed + Protect. Skarmory walls you entirely as well. In a nutshell, SD Drapion is inefficient in OU; get rid of it imo.
- Remove the Jolly nature slash on the Toxic Spiker; there's no need for a +Spe nature if you're not investing in any Speed at all.
- Add Taunt in the final move slot and make it the first slash. Taunt's great for preventing Ferrothorn, Forretress, and Skarmory from setting up their own hazards. With Taunt, Reuniclus can't beat you either.
That's all I have for you. Drapion's pretty cool since it can set-up Toxic Spikes while walling Reuniclus quite well. Once these changes are made, I'll give you an approval.