Well Drapion, let's start with Toxic Spikes. Then use Roar the next turn if Toxic Spikes succeeds, otherwise use Poison Jab. If your opponent happens to Protect or Detect, use Swords Dance instead of any attack I commanded. If you're Taunted, always use Cross Poison!
Toxic Spikes/Swords Dance/Cross Poison ~ Roar/Poison Jab/Swords Dance/Cross Poison