# Sickening Radiance *4th-level, Evocation* - **Casting time:** 1 Action - **Range:** 120 feet - **Components:** V, S - **Duration:** Concentration, up to 10 minutes Dim, greenish light spreads within a 30-foot-radius sphere centered on a point you choose within range. The light spreads around corners, and it lasts until the spell ends. When a creature moves into the spell's area for the first time on a turn or starts its turn there, that creature must succeed on a Constitution saving throw or take `4d10` radiant damage, and it suffers one level of [exhaustion](/3-Mechanics/CLI/conditions.md#Exhaustion) and emits a dim, greenish light in a 5-foot radius. This light makes it impossible for the creature to benefit from being [invisible](/3-Mechanics/CLI/conditions.md#Invisible). The light and any levels of [exhaustion](/3-Mechanics/CLI/conditions.md#Exhaustion) caused by this spell go away when the spell ends. **Classes**: [Bard](/3-Mechanics/CLI/lists/list-spells-classes-bard.md); [Fighter (Eldritch Knight)](/3-Mechanics/CLI/lists/list-spells-classes-eldritch-knight-xphb.md "subclass=XPHB;class=XPHB"); [Rogue (Arcane Trickster)](/3-Mechanics/CLI/lists/list-spells-classes-arcane-trickster-xphb.md "subclass=XPHB;class=XPHB"); [Sorcerer](/3-Mechanics/CLI/lists/list-spells-classes-sorcerer.md); [Warlock](/3-Mechanics/CLI/lists/list-spells-classes-warlock.md); [Wizard (Evoker)](/3-Mechanics/CLI/lists/list-spells-classes-evoker-xphb.md "subclass=XPHB;class=XPHB"); [Wizard](/3-Mechanics/CLI/lists/list-spells-classes-wizard.md) *Source: Xanathar's Guide to Everything p. 164*