# Storm Sphere *4th-level, Evocation*  - **Casting time:** 1 Action - **Range:** 150 feet - **Components:** V, S - **Duration:** Concentration, up to 1 minute A 20-foot-radius sphere of whirling air springs into existence, centered on a point you choose within range. The sphere remains for the spell's duration. Each creature in the sphere when it appears or that ends its turn there must succeed on a Strength saving throw or take `2d6` bludgeoning damage. The sphere's space is difficult terrain. Until the spell ends, you can use a bonus action on each of your turns to cause a bolt of lightning to leap from the center of the sphere toward one creature you choose within 60 feet of the center. Make a ranged spell attack. You have advantage on the attack roll if the target is in the sphere. On a hit, the target takes `4d6` lightning damage. Creatures within 30 feet of the sphere have disadvantage on Wisdom ([Perception](/3-Mechanics/CLI/skills.md#Perception)) checks made to listen. **At Higher Levels.** When you cast this spell using a spell slot of 5th level or higher, the damage for each of its effects increases by `1d6` for each slot level above 4th. **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); [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. 166*