# Cloudkill *5th-level, Conjuration* - **Casting time:** 1 Action - **Range:** 120 feet - **Components:** V, S - **Duration:** Concentration, up to 10 minutes You create a 20-foot-radius [Sphere](Mechanics/CLI/rules/variant-rules/sphere-area-of-effect-xphb.md) 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 [Gust of Wind](Mechanics/CLI/spells/gust-of-wind-xphb.md)) disperses it, ending the spell. Its area is [Heavily Obscured](Mechanics/CLI/rules/variant-rules/heavily-obscured-xphb.md). Each creature in the [Sphere](Mechanics/CLI/rules/variant-rules/sphere-area-of-effect-xphb.md) makes a Constitution saving throw, taking `5d8` 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](Mechanics/CLI/rules/variant-rules/sphere-area-of-effect-xphb.md) moves into its space and when it enters the [Sphere](Mechanics/CLI/rules/variant-rules/sphere-area-of-effect-xphb.md) or ends its turn there. A creature makes this save only once per turn. The [Sphere](Mechanics/CLI/rules/variant-rules/sphere-area-of-effect-xphb.md) moves 10 feet away from you at the start of each of your turns. **Using a Higher-Level Spell Slot.** The damage increases by `d8` for each spell slot level above 5. **Classes**: [Bard](Mechanics/CLI/lists/list-spells-classes-bard.md); [Sorcerer](Mechanics/CLI/lists/list-spells-classes-sorcerer.md); [Wizard](Mechanics/CLI/lists/list-spells-classes-wizard.md) *Source: Player's Handbook (2024) p. 251. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)*