Intellect Fortress

Spell Level: Level 3

Spell School: Abjuration

Casting Time: 1 action

Range: 30 ft

Components: V

Duration: Concentration, up to 1 hour

Castable By: Bard, Sorcerer, Warlock, Wizard, Artificer

Description

At Higher Levels

When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature for each slot level above 3rd. The creatures must be within 30 feet of each other when you target them.

Source: Unearthed Arcana