The World's Time Stop

You briefly stop the flow of time for everyone but yourself. The only exception for this are reality-bending enemies and people who also know Time stop. 

This spell stops time for 3 turns, during which you can cast any spells you want. Projectile spells will stop in flight 5ft from you, but when time stops they will continue in the original direction and work as normal. If you are within 5ft of an enemy, the projectile spell will instantly hit. After the spell ends you will get max exhaustion.

People who know time stop can instantly cast time stop to start moving for 3 turns if frozen time. If person A activated time stop and person B activates it one turn later, B will have one more turn in frozen time than A.