Polychromatic Bubble

4th-level conjuration

Casting Time: 1 action

Range: 90 feet

Components: V, S, M (a chip of soap and a drop of oil)

Duration: Concentration, up to 1 minute

You create a shimmering, multicolored bubble around a Large or smaller creature or object within range. The target must succeed on a Dexterity saving throw or be trapped within the bubble. A creature that starts its turn inside the bubble can’t see or hear anything outside the bubble and must succeed on a Wisdom saving throw or be charmed by you and the bubble until the start of its next turn. At the start of each of your turns, the bubble rises 10 feet into the air along with its contents, up to a maximum of 30 feet.

The bubble has an AC equal to your spell save DC and hit points equal to twice your spellcasting ability modifier. A creature outside the bubble that hits the bubble with an attack must succeed on a Wisdom saving throw or be charmed by you and the bubble until the start of its next turn.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, you can create one additional bubble around one additional target for each slot level above 4th. The targets must be within 30 feet of each other when you target them.