Demiplane
Special Bastion Facility · Level 17+
Facility Features
A door up to 5 feet wide and 10 feet tall appears on a flat, solid surface in one of the other facilities in your Bastion. You choose the location. If you are in your Bastion during a Bastion turn, you can relocate this door to another facility in your Bastion.
Only you and your Bastion's hirelings can open the door, which leads to a Demiplane that takes the form of a stone room. The Demiplane exists in an extradimensional space and therefore isn't attached physically to other locations in your Bastion. Neither the Demiplane nor its door can be dispelled.
Empower: Arcane Resilience
When you issue the Empower order to this facility, magical runes appear on the Demiplane's walls and last for 7 days. Until the runes disappear, you gain Temporary Hit Points equal to five times your level after spending an entire Long Rest in the Demiplane.
Fabrication
While in the Demiplane, you can take a action to create a nonmagical object of your choice from nothing, causing it to appear in an unoccupied space in the Demiplane. The object can be no bigger than 5 feet in any dimension; can't have a value over 5 GP; and must be made of wood, stone, clay, porcelain, glass, paper, nonprecious crystal, or nonprecious metal. You must finish a Long Rest before you can take this action again.