More annoying for me personally, and upsets my inner OCD, is that it can sometime be dispelled and sometimes not. In Amdapor HM you can remove it by running into the correct circled on the second boss, and in WC it can be avoided on Forgall by not messing up to begin with. But in Antitower you just sit there toaded forever until your teammates decide to kill the two adds - made even more fun when paired in DF with an ice mage