hermes421 wrote:
Hi!
I am making up a spell where a gaz irritates eyes but also turn into a blanket of fog. That makes enemies blind.
Do you consider skeletons, mummies, golem (and so on) suffer of blinding? I would say yes?
I guess there are a couple of elements to that spell - the first is the irritant effect and the second is the fog. The irritant effect, I would probably argue wouldn't work on undead, constructs, and other creatures that do not have living human-like eyes (the irritant effect being the response of the living creature's biological defences to the irritant).
As for the fog, I would argue that even the panoptical vision of some undead/constructs, etc., would be obscured by fog. Panoptical vision doesn't for example, allow these creatures to see through walls, and I see no reason why fog would be any different. Snakes, however, and other creatures that "see" by sensing vibrations would not be impaired by fog.
But it's all magic, so if such a spell would have a game-breaking impact on an adventure, I'd rule that it either didn't work at all, the effect behaves slightly differently this time, or one or more of the creatures in the area of effect weren't affected for some other magical reason. The narrative always trumps the game rules and magic is, by its nature, capricious - if the players come to rely on it too much and treat it like a science, then they should be in for a shock every now and again - not often, but occasionally...