Crooked Ward

You touch an immobile surface and mark a symbol that causes agony in twisted creatures. An Invisible, 30-foot-radius Sphere springs out from the point you touch. Each Aberration, Fey, Fiend, Monstrosity, or Undead in the Sphere has Disadvantage on ability checks and attack rolls. When an affected creature enters the Sphere for the first time on a turn or starts its turn there, it must succeed on a Wisdom saving throw or have the Frightened condition until the start of its next turn.

Using a Higher-Level Spell Slot. You can maintain Concentration on this spell for longer if you cast it using a spell slot of level 4 (up to 1 hour) or 5 (up to 8 hours). If you use a level 6+ spell slot, the spell doesn't require Concentration, and the duration becomes 24 hours.