Arcane Glyphs
Each round when the gate first takes damage, the arcane runes etched upon it unleash a blast of magical lightning. The triggering creature must succeed on a DC 15 Dexterity saving throw, taking 11 (2d10) lightning damage on a failed save, or half as much on a successful one. A detect magic spell reveals an aura of evocation magic upon the door. A creature within 5 feet of the gate can use a…