As you spend 1 minute to cast this spell, a sphere twice as big as normal in the shape of an immobile dome of physical material from the surrounding area such as dirt, wood, plants, or metal is formed around and above you and remains stationary for the duration.
Nine creatures of Medium size or smaller can fit inside the dome with you. The spell fails if its area includes a larger creature or more than nine creatures.
The dome is an object that can be damage and thus breached. It has 12 Defense and 15 Health per 3-meters section. Reducing a 3-meters section of wall to 0 health destroys it.