Protect Threshold
Tracing arcane sigils along its boundary, you can ward a doorway, window, or other portal from entry. For the duration, an Invisible eldritch creature stalks the warded portal. Any creature that attempts to pass through the portal makes a Wisdom saving throw, taking 4d6 Psychic damage on a failed save or half as much damage on a successful save. Using a Higher-Level Spell Slot. The damage…