User:Guy/Splat/Spells/Sentinel's Watch

Sentinel's Watch

4-point abjuration, ritual
Casting time:	1 minute
Range:	30 feet
Components:	V, S
Duration:	concentration, up to 10 hours

Your eyes take on a supernatural glow as you keep a vigilant watch over a 30-foot-radius. Within this radius, you can detect all movement through blindsight, and through this sense you see even otherwise invisible creatures. You automatically succeed on Wisdom (Perception) checks made to notice anything within this radius. While this spell persists you cannot become dazed nor fall unconscious.
 If a creature you notice moves within this radius, you can use your reaction to swivel your head towards that creature and project a beam of searing light from your eyes. The target must succeed on a Wisdom saving throw or take 2d10 radiant damage and have its speed reduced to 0 until the start of your next turn. Regardless of the save's result, the creature glows bright light out to a radius of 30 feet, and dim light for another 30 feet, for as long as the spell persists.
 Your concentration on this spell is broken if you are ever more than 30 feet away from where you cast it.
 If you concentrate on this spell for 10 hours in a location suitable to take downtime, you gain the benefits of downtime at the spell's end, including the benefits of a full night's sleep—but excluding any trade or enterprise.
 Exhausting Spell. Once you cast this spell, you can't cast it again nor cast any other exhausting spell until you finish a rest.