Throne world dominion

You perform a dark ritual to create a Throne World, a pocket dimension under your control. The Throne World is a demiplane that you shape according to your desires, with a maximum size of 50,000 miles in diameter. You can create structures, terrain, and even lesser creatures to inhabit your Throne World. The environment within the Throne World is hostile to all creatures except those you designate.

Once the Throne World is created, you can access it by performing a 1-hour ritual, which can be done once per long rest. You can also banish creatures to your Throne World by touching them and using an action, forcing them to make a Charisma saving throw. On a failed save, the creature is transported to your Throne World and cannot leave without your permission.

if you are to die you reform back in your throne world within 1d12 days the only way to destroy the throne world is by having died inside the throne world wich then causes the Throne World to collapse, and any creatures within it are expelled into the nearest unoccupied space in the material plane.