Umix' Reversal

A tendril of smoke shoots from your hand to a point within range. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. On a success, they move out of the sphere and have advantage on dexterity saving throws for the duration of the spell. On a failed save, the creature will experience reversed gravity for the duration. The creature will 'fall' upwards for the duration of the spell, taking fall damage starting from its original height if it hits anything. At the end of the spell, normal gravity is restored and the creature will fall back to earth, taking fall damage again.