Void space

The caster has gained the favour of a being that allows them to access a portion of a void space. The spell can be cast as a ritual in a single minute instead of ten. The caster can use this spell as often as they feel the need to, but every 10th time it is cast it consumes a spell slot of any available level. This space is as big as the patron allows (DM gets a say in this). The opening to the void space appears as a circle of the needed size. Within the void space, time does not move and the temperature of the object doesn't change. Should a creature end its turn within the space, they take 1d6 psychic damage. The spell can be learned by anyone as long as they have a being granting them access to such a space.