[llamabeast]

Going above 200 fatigue is indeed quickly fatal, _but_ casting a single spell will never take a mage above 200 fatigue (I only realised this recently). Communion slaves though can easily be killed by excessive fatigue since the masters won't stop casting just because the slaves are asleep, and Grip Of Winter/Heat From Hell/Rigor Mortis can all also easily kill people from fatigue (particularly if they've already worn themselves out casting spells).