Alavar's Spacetime Anomaly

You create a disturbance in spacetime, causing the fabric of reality to collapse around you. You create a 30ft  radius area of warped space centered on you that remains stationary for the duration.

When you cast this spell, you can designate any number of creatures you can see to be affected by it. For the duration, any affected creature within the spell's area can use a bonus action on each of their turns to slip through a dimensional pocket and teleport up to 30 feet to an unoccupied space that they can see that is also within the spell's area.