One of my go-to moves is to use my Wizard or Sorc to cast haste on my main damage Dealers and then use an Invis Pot and move FAR away.
This drives the AI crazy, especially if I am nowhere near any of them or even my last position. They all take a few steps in the direction I should be then get stuck until the turn auto-ends. In large battles this is a big cause of slowdown since the AI enemy prioritizes a concentrating spellcaster over almost everything - but they can't find me so they get in some sort of loop.
