Time Bomb

You create an orb of magic that can be thrown and lobed over objects and will detonate when it hits a surface or creature. When the spell detonates it will create a dome with a diameter of 30ft and all creatures and objects within it will instantly freeze in time. Creatures cannot move or take an action and any effects and conditions that a creature has will stop and start again until the spell ends if a creature or object enters the dome while it is active will suffer the same effects. when a round passes the dome will shrink by 5ft and any creature or object will be freed if they are within the 5ft, this continues until the spell ends.

Higher levels will enlarge the dome by 5ft and the spell will last another round.