Note: This trick does not work on Raptors, Purrlin, and Captain Bruckner. Have the battle ax ready. Hold [Fire] until Tal'Set turns the ax around and puts it behind him. Then, aim for the enemy's head (you might have to jump) and release. It helps to have the invisibility cheat enabled so that they stand still. If you miss but still hit them, try hitting them one more time.