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Private Sanctum

Abjuration
Level: 4th-level
Casting Time: 10 minutes
Range: 120 feet
Duration: 24 hours
Components: V, S, M
Materials: A thin sheet of lead, a piece of opaque glass, a wad of cotton or cloth, and powdered chrysolite.

You make an area within range magically secure. The area is a cube that can be as small as 5 feet to as large as 100 feet on each side. The spell lasts for the duration or until you use an action to dismiss it. When you cast the spell, you decide what sort of security the spell provides, choosing any or all of the following properties:
- Sound can't pass through the barrier at the edge of the warded area.
- The barrier of the warded area appears dark and foggy, preventing vision (including darkvision) through it.
- Sensors created by divination spells can't appear inside the protected area or pass through the barrier at its perimeter.
- Creatures in the area can't be targeted by divination spells.
- Nothing can teleport into or out of the warded area.
- Planar travel is blocked within the warded area.
Casting this spell on the same spot every day for a year makes this effect permanent.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, you can increase the size of the cube by 100 feet for each slot level beyond 4th. Thus you could protect a cube that can be up to 200 feet on one side by using a spell slot of 5th level.

Spell Details

School: Abjuration
Level: 4
Ritual: No
Concentration: No
Classes: Wizard
A-Tier Exceptional utility for securing locations, protecting allies, and controlling access; limited direct combat application but transformative for tactical positioning.

Player Guide

Private Sanctum excels at securing a location before or after combat, making it ideal for protecting a camp, safe house, or strategic position. Use it to deny enemies access to a critical area, give allies time to rest or prepare, or create a defensible position with controlled entry points. The spell's flexibility in size and duration (10 minutes to permanent concentration) allows adaptation to various scenarios, though its non-concentration permanence option makes it valuable for long-term base security.

DM Tips

Private Sanctum's power scales with creative player interpretation—clarify whether sound travels through walls and how the spell interacts with existing structures. Consider that the permanence option (10 minutes concentration converted to permanent) makes it a powerful late-game resource for establishing bases, so track which locations have been permanently secured.