Either Spike uses "the thing" or Spike chants the spell that undoes any spell that was cast in the past 5 minutes in a 5 feet radius if his mistress.
We need a limiter release moment for spike where he accessing his full potential on twilight's command.. activating the runestones or some other McGuffin that he had set up ahead of time around town.
Either Spike uses "the thing" or Spike chants the spell that undoes any spell that was cast in the p