The Frostbite spell makes a touched foe fatigued, but it says that it can not make a creature exhausted even if it is already fatigued. The Ray of Exhaustion spell makes the target fatigued even if it makes the saving throw. Would the fatigue from RoEx stack with the fatigue from Frostbite, or would that count as Frostbite making the creature exhausted since it contributed?
[thread necro]I just thought about the same thing. I guess it works. But what I'm not sure is what happens if the target gets magical healing that completely heals his nonlethal from frostbite. The description states that when this happens the fatigue goes away. But what happens with the exhaustion?[/thread necro]
I believe order will be important. Here's an example why:
You have both of the mentioned spells memorized, and you're facing 2 BBEGs. You cast a Quicken Frostbite on one target and hit; they are fatigued from the effect. You then proceed to cast Ray of Exhaustion on the same target. If they make the save, they're exhausted. If they fail, they're still fatigued, and its duration would probably stack with Frostbite.
Next turn comes around, and you decide to change it up. You hit the other one with a Ray of Exhaustion. If they make the save, they're fatigued from the effect for X duration. Now you follow up with that Quicken Frostbite. You hit it with your Frostbite, and it increases the duration of the fatigued condition by Y rounds.
However, if they fail the save and become exhausted for Z duration, you can follow up with the Quicken Frostbite, but its effects don't stack with the exhausted condition. It still does force a creature to be fatigued for Y rounds, meaning if they remove the exhausted condition, they still suffer fatigue. But since exhausted > fatigue, and their effects don't stack (in terms of duration and debuffs applied), the Frostbite will do nothing to the exhausted duration or effect, but should exhausted be removed, then fatigued will still be applicable for Y rounds minus the rounds spent while exhausted.
Regardless of this being a very old thread, I hope this answers the question!
I believe order will be important. Here's an example why:
You have both of the mentioned spells memorized, and you're facing 2 BBEGs. You cast a Quicken Frostbite on one target and hit; they are fatigued from the effect. You then proceed to cast Ray of Exhaustion on the same target. If they make the save, they're exhausted. If they fail, they're still fatigued, and its duration would probably stack with Frostbite.
Why would you think a target made fatigued with frostbite and then hit with a ray of exhaustion will not be exhausted even if he maked his save?
The spell clearly states: A character that is already fatigued instead becomes exhausted.
So according to this a character who is already fatigued will become exhausted if hit with a ray of exhaustion.
I believe order will be important. Here's an example why:
You have both of the mentioned spells memorized, and you're facing 2 BBEGs. You cast a Quicken Frostbite on one target and hit; they are fatigued from the effect. You then proceed to cast Ray of Exhaustion on the same target. If they make the save, they're exhausted. If they fail, they're still fatigued, and its duration would probably stack with Frostbite.
Why would you think a target made fatigued with frostbite and then hit with a ray of exhaustion will not be exhausted even if he maked his save?
The spell clearly states: A character that is already fatigued instead becomes exhausted.
So according to this a character who is already fatigued will become exhausted if hit with a ray of exhaustion.
So I fudged with the description. That otherwise is generally how it would work. It doesn't change much of what I said.
The order of the spells when cast is still important as it indicates what does and does not stack in a given situation.