The Cloudkill spell creates a toxic cloud that moves away from the casting point at 10 ft per round. You recalculate the new spread from the new point or origin each turn, says the description. I am with you so far.
But if the Cloud run into a wall, what happens? Does it simply sieze to exist when the point of origin passes the wall? That seems counter-intuitive, since the spell has actually created (Conjuration:creation) a cloud of actual smoke. That should not sieze to exist in contact with solid objects. Or does it?
gotta make a GM call there - I'd spread it out along the wall
I think it stops at the wall and sits there for the remainder of the duration.
Spells typically don't move through solid objects unless it clearly makes sense for them to do so. Teleportation effects, for example. I'm with Lemartes on this one.
It's a spread:
Quote: Figure out the cloud’s new spread each round based on its new point of origin, which is 10 feet farther away from the point of origin where you cast the spell. So, I would say the point of origin would travel along the wall, 10' per round, away from you, and you would calculate the spread of the cloud from that point.
If it hits the wall exactly perpendicular, pick a direction, left or right, and go from there. If it hits a corner, such that continuing to travel along that wall would turn it back towards you, the point of origin gets stuck there.
Well long time ago (2E days before things like "spreads" existed) when exactly that happened in my game it did what Lemartes suggests. Most important unless it's a PFS game is for the GM to be consistent and not run it Ozy's way one time, then Lemartes, then what ever other option(s) exist.
I'd say it stops on the wall since the mythic version allows you to change the cloud direction each round.
Stops works for me. At best maybe allow it to spread to the middle point (as a creeping a long both ways of the wall) so it would stop once it hit the full diameter
Mattias Carlstedt wrote: The Cloudkill spell creates a toxic cloud that moves away from the casting point at 10 ft per round. You recalculate the new spread from the new point or origin each turn, says the description. I am with you so far.
But if the Cloud run into a wall, what happens? Does it simply sieze to exist when the point of origin passes the wall? That seems counter-intuitive, since the spell has actually created (Conjuration:creation) a cloud of actual smoke. That should not sieze to exist in contact with solid objects. Or does it?
It stops spreading where it contacts the wall since it no longer has line of effect to spread into if you need a RAW reason. Walls or other solid objects block line of effect for the most of magic.
The spell does not cease to exist, it is just constrained by the rules of magic and physics of the world it is in.
Why does the point of origin stop moving again? The spell says it moves away from the player. If it can still move away from the player by changing direction and traveling along they wall, why wouldn't it?
_Ozy_ wrote: Why does the point of origin stop moving again? The spell says it moves away from the player. If it can still move away from the player by changing direction and traveling along they wall, why wouldn't it? You really do not want to open that can of worms. Introducing direction changing Cloudkill is a bad idea.
thorin001 wrote: _Ozy_ wrote: Why does the point of origin stop moving again? The spell says it moves away from the player. If it can still move away from the player by changing direction and traveling along they wall, why wouldn't it? You really do not want to open that can of worms. Introducing direction changing Cloudkill is a bad idea. Explain. Why is it a bad idea? The spell says the point of origin moves away from you, why should that stop happening if it touches something?
Let's say the point of origin hits a wall at a 45 degree angle, does it still stop?
Angles are one thing. Direct stop is another.
Cavall wrote: Angles are one thing. Direct stop is another. Again, explain. It hits a wall at pretty much a 90 degree angle, why is it a 'bad idea' for it to start moving to one side or the other? Or does it only move if it hits at slightly less than 90 degrees, like 89.9?
Which way then? Players choice? Random? Neither is covered. Also because it's now moving sideways, but the rules are "Figure out the cloud's new spread each round based on its new point of origin, which is 10 feet farther away from the point of origin where you cast the spell." Does this mean it moves further than 10 feet to satisfy moving 10 feet from the point of origin?
Cavall wrote: Which way then? Players choice? Random? Neither is covered. Also because it's now moving sideways, but the rules are "Figure out the cloud's new spread each round based on its new point of origin, which is 10 feet farther away from the point of origin where you cast the spell." Does this mean it moves further than 10 feet to satisfy moving 10 feet from the point of origin?
Random, assuming you can't determine the angle of incidence accurately.
It moves 10' per round in its new direction.
Again, what's the problem?
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