Originally posted by johan osterman: The likely cause is that they have no offensive spells that might reach the retreating enemies.l So since they cannot reach the enemies with their spell they cast a defensive spell. Which means that the casting of the defensive spell is inconsequential, the alternative would be them holding instead.
Fire Darts have a range of 25+... and my basic 90-gold witches from Machacha are usually near the middle/front. Played several games and I'm quite sure range was not a problem.