Sleepless Knight

Armor Class 18

Hit Points 190 (20d8 + 100)

Speed 35 ft.

Initiative +4

Saving Throws Str +11, Cha +8

Skills Arcana +6

Damage Resistances slashing and piercing from nonmagical weapons

Condition Immunities exhaustion, unconcious

Senses passive Perception 12

Languages Common, Elvish, Sylvan

Challenge 13 (10,000 XP)

Multiattack. The knight makes three sands of slumber attacks. It can use Wave of Exhaustion in place of one attack if it is available.

Sands of Slumber. Ranged Weapon Attack: +12 to hit, range 10/20 ft., one target. Hit: 22 (3d10 + 6) bludgeoning damage. If the target is a creature, it must then succeed on a DC 16 Constitution saving throw or be blinded for 1 minute. A blinded creature can repeat the saving throw on each of its turns, ending the effect on itself on a success.

Eternal Slumber (Recharges after a Long Rest). The knight points at a creature it can see. The target must succeed on a DC 16 Wisdom saving throw (with advantage it is are hostile to the knight) or fall unconcious unable to be awoken. While asleep, the creature doesn't need to breathe, eat, or drink, and it doesn’t age. Divination spells can’t locate or perceive the target.    A dispel magic spell can end the effect only if it is cast as a 8th-level spell. The knight can choose to end the effect as a bonus action.

Wave of Exhaustion (Recharge 5-6). The knight flings sand into the air in a 60-foot cone. Each creature in that area must make a DC 16 Constitution saving throw. On a failed save, a creature takes 33 (6d10) bludgeoning damage and gains one level of exhaustion. On a successful save, the creature takes half as much damage and no other effect. When a creature finishes a long rest, it recovers from all exhaustion caused by this effect.