Temporal Barrier (Chronomancy School of Magic)

An invisible, floating wall of distorted spacetime appears at a point you choose within range, in any orientation. You can form it into a hemispherical dome or a sphere with a radius of up to 15 feet, or you can shape a flat surface made up of ten 10-foot-square panels. Each panel must be contiguous with another panel. In any form, the wall is 1 inch thick and lasts for the duration.

When the wall appears, each creature within its area must make a Strength saving throw, which it can choose to fail. On a failed save, a creature is incapacitated until the end of its turn. While incapacitated, creatures have their speed reduced to 5 feet and are immune to falling damage. Any creature that touches or passes through the wall must likewise make this saving throw.

Ranged attacks and spells cast through the temporal barrier have disadvantage on attack rolls, and targets have advantage on dexterity based saves against spells.