Branche-Ander's Charged Cell

You create a magical electric confinement that borders an area of 10 x 10 feet. The walls are charged with an electric force energy that damages anything that passes through. If any creature attempts to enter or exit the space must make a Dexterity saving throw. On a fail, the creature takes 5d10 lightning damage and becomes stunned. On a success the creature takes half damage. On the creatures next turn, it can make another Dexterity saving throw to move free of the prison wall. On a fail, the creature only takes 1d10 but remains stunned. On a success the creature takes half and can move free of the wall.

If more than 3 creatures attempt to pass through the wall then the spell ends as the electric energy is drained from the barriers. Attacks from magic items and spells pass through unhindered.

All non-magic items used in attacks through the walls are instantly vaporized.

At Higher Levels. When you cast this spell at 6th level or higher, the damage increase by 1d10 for every level beyond level 5.