Azazel's Throne of bones

You snap your fingers, creating an iron throne in an unoccupied location somewhere within range. The throne can be warmer or colder than the environment around it, enough to protect you from chill or heat, but not enough to cause harm. It can be sized for large or smaller creatures at 10ft on all sides. The throne's asthetic design is up to the caster.

The throne disappears after the duration, or can be dispelled early. If cast again, the old throne disappears and is replaced by the new one.

Regardless of asthetic, the throne is primarily composed of bones.