Signal Beam over Wriggle Kick if you dont want to risk the recoil damage and inaccuracy. Use Endure to get to red HP, which is when Liechi will raise Attack, or Salac will raise Speed if you need to be quicker. Swarm will boost Wriggle Kick/Signal Beam by 50%, which will pack a tremendous punch to anything that doesnt resist bug moves. Facade (doubled power under poison/paralyze/burn) is brutal against walls that enjoy abusing Toxic or Thunder Wave, especially since it became a Fighting-type move in Touhoumon. Heal Bell is worth noting as Wriggle is actually fast enough to pull it off, but it should generally be left to more durable Touhoumon such as Mugetu or Minoriko.
Note that Signal Beam is Special in unofficial patches that use the DP skill system.