You create a 20-foot-radius Sphere [Area Of Effect] of yellow-green fog centered on a point within range. The fog lasts for the duration or until strong wind (such as the one created by ) disperses it, ending the spell. Its area is Heavily Obscured.
Cloudkill
Level 5 Conjuration · Concentration
Casting Time1 action
Range120 feet
DurationConcentration, up to 10 minute
Components
V, S
Spell Description
Using a Higher-Level Spell Slot
Each creature in the Sphere [Area Of Effect] makes a Constitution saving throw, taking ☠️ Poison damage on a failed save or half as much damage on a successful one. A creature must also make this save when the Sphere [Area Of Effect] moves into its space and when it enters the Sphere [Area Of Effect] or ends its turn there. A creature makes this save only once per turn.
The damage increases by for each spell slot level above 5.
The Sphere [Area Of Effect] moves 10 feet away from you at the start of each of your turns.