[kasnavada]

capnq, you're probably right, even if that doesn't apply to this battle. And you're probably right for another reason, if I buffed first then casted this spell, the spell would probably have been ignored. And you're also right about casting this spell : it was a mistake I won't ever do again in such a situation.

The problem I had was that the spell was casted as I scripted. If the script was ignored, it would have cast one of the cheap buff spell that cost 20 fatigue and not caused a problem at all... but the script wasn't ignored, the caster just decided not to use the gems for some reason, resulting in 200 fatigue. At least, if it doesn't want to use gems, it should at least ignore the script altogether.

But this example was just another example, maybe after enough examples we will be able to find out why the script ignores or not the scripts or gems...