The spell Cloudkill has the following effect:
When a creature enters the spell’s area for the first time on a turn or starts its turn there, that creature must make a Constitution saving throw. The creature takes 5d8 poison damage on a failed save, or half as much damage on a successful one.
The bolded section is language shared by several spells (Moonbeam, Sleet Storm).
If a creature starts its turn in the Cloudkill (and therefore makes a save/takes the damage), runs out of it, then runs back in, will it need to make another save?
i.e. does “enters the spell’s area for the first time on a turn” mean:
- The first instance of transitioning from outside the spell’s area to inside it on a turn (yes, the creature must make the save)
- Any time the creature enters the spell’s area and has not previously been in it this turn (no, the creature doesn’t make the save)