Astral Chateau

You harness the magnificent power of both the otherworldly splendor of Magnificent Mansion and the mystifying realm-shifting capabilities of Impossible Reality to conjure an awe-inspiring Astral Chateau.

When you cast this spell, you create a majestic ethereal palace that exists simultaneously within the Astral Plane and the Material Plane. The Astral Chateau appears as an impossibly grand stronghold, with shimmering walls made of interwoven strands of magic, endless corridors, and mysterious portals leading to unknown destinations.

The interior of the Astral Chateau is a shifting kaleidoscope of extradimensional chambers, each embodying a different transitory reality. These chambers can range from serene gardens to treacherous labyrinths, opulent ballrooms to floating libraries, and beyond. The layout of the Astral Chateau is ever-changing, providing an infinite variety of experiences and environments to explore.

When entering the Astral Chateau, time slows to a crawl, granting you and any designated creatures the benefits of a long rest in just one hour. Additionally, the nature of the Astral Chateau bends reality itself, allowing you to alter the environment to suit your needs. You can control elements such as lighting, temperature, and weather within any given chamber, as well as create minor illusions at will.

Furthermore, the Astral Chateau grants you and your chosen creatures temporary mastery over reality. Once per turn, as a bonus action, you can alter the properties of the current chamber, allowing you to create difficult terrain, impose illusory barriers, or even temporarily transform yourself or others into ethereal beings. These alterations last until the end of your next turn.

However, the spell's immense power comes at a cost. For each additional hour beyond the initial hour's duration that you choose to extend the Astral Chateau, you must succeed on a DC 18 concentration check at the end of each hour to maintain control over the spell. Failure results in the spell ending prematurely and all creatures within the Astral Chateau being immediately transported back to their original location.