Has anyone run into a balance issue with pc's use of terror? We have a rank 2 player who is now a Warlock who mows baddies down by essentially scaring them to death. I don't have any of the cards or his character here with me, but he has an spell that allows him to go all "large marge" and turn into a hideous monster causing fear. The warlock also has a career ability that allows him to convert fear into terror, so it is not at all unheard of for him to be dealing 8 wounds to all non-nemesis baddies in the room if they fail their saves- which they have to make every turn as he keeps it up. I do not want to suggest that we totally nerf it because he there are so many situations in some adventures where he cannot use this attack for fear a phalanx of witch hunters coming after him, and it also effects his allies too (one of these days I am going to fail a save an put an arrow in his back), so it's not like he has no blow-back.
I am just trying to think of some other options aside from stress and fatigue dealing wounds or taking away ACE dice that is still worth the effort he has gone into building up to this.