Who says it's warm? Who says it's billowing? Who says it's even magical—might be Conjuration in D&D terms. Nonmagical smoke created by magic.
I also think this definitely should be the case. Seeing through smoke an illusionary terrain is also perfectly fine in my book.
Oh, you'd definitely want your smokescreen to be warm and billowing. There are creatures who sense warmth. Snakes, for example. If the smoke was static, it would help detect movement in it as moving would disturb it and potentially reveal your location which would be counterproductive. Infrared, pfft. Species with interstellar travel capability wouldn't bother with such inferior technology, not relying solely on it for non-visible spectrum detection, anyway.
Okay, it's microgravitational detection. So just throw a weapon out between the sensor and it's allies and ... Darn. We can't throw things in this game. How is it that Cardhuntrian adventurers never learned to throw?
They learned soon that a weapon thrown is a weapon in the hands of a creature who's angry at you for throwing the weapon at it.
Well, Pinning Spear Toss used to be a player card and it was terrible. A partial mind wipe of all of Cardhuntria was the only reliable solution.
Oh? I remember the extraction of thrown whatsits back then, but not anything about how "it was terrible." To quote a videogame character whom no one but me ever seems to know: Come, come: elucidate!
