Third of the Primordial, the embodiment of space itself. It was said that those who wield it wield the fabrics of space itself.

"It was on the third day, when the great olds that rejected the gods defined the meaning of space, and it was through this, distance and size gained meaning in the primordial chaos."

While attuned to this item, you gain an extra bonus action.  While outside of combat, you can bring up to 4 creatures and teleport to a place that you have already visited before, this can only be done once between each long rest. You have a pocket dimension of X*X*X cubic inches， where X is your level*3. 

During combat, if you were to cast a spell that has the effect of teleporting, opening a rift or gate, crossing dimensions etc, you can cast it with a bonus action instead and this does not count towards the number of level spells cast per turn. Once between each long rest, you may also expand an action in an attempt to cast a target into your pocket dimension for 1 turn (6 seconds), the target must fail a dexterity saving throw for this to happen. While exiting the pocket dimension, the target takes XD10 Force damage, where X is equals to half your level.

Notes: Attunement to this item requires a successful DC20 Wisdom check, followed by a successful DC20 Intelligence check. These can only be done once.