I only think it's a cheese tactic against monsters(especially Dragons) who do not
response to the attack... ... :/
Firkragg: *cough cough* Can't... breathe...
RandomServant: Move out of the cloud Master! Move!
Firkragg: What cloud? *cough cough* I'll just heal myself.
RS: Can't you see it?! It's all around you! That party ov- *URK!*
Firkragg: *cough cough* What was that? *cough cough* What's going on?! *cough cough* ARRGGGHHHH!!!!
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If not a Sorcerer, then a Paladin.