Domain Expansion: Shrine

A large black 60 ft diameter sphere, inside of the sphere is a shrine surrounded by bones, inside of the domain each entity besides the user takes 2d8 Slashing damage per turn. The domain lasts for four turns.
The sphere can not be destroyed from the inside.
The sphere has a health pool of 3d8, if destroyed from the outside the domain fails.
To active the spell the user must position their hands with their ring and pink folded inwards, with middle, index, and thumbs fully outwards. Once done the hands come together and the user chants "Domain Expansion: Shrine" to activate the spell. The spell can be activated once per long rest.