The property of a Dessicating weapon states,
"Each time you hit with this weapon, your target
takes a cumulative –1 penalty to its Fortitude defense
(save ends). One saving throw ends the entire penalty,
though the target can receive the penalty again with
That's all well and good for attacks that target Fort, but I was wondering what would happen if you reduced an enemy's Fort to 0. Would that be like reducing a creature's CON to 0, which kills them? Is there are precedent for ability score damage in 4e?