Astral Sentinel

Radiant Burst (Recharge 5-6): The astral sentinel releases a burst of radiant energy. Each creature within a 20-foot radius of the astral sentinel must make a DC 17 Dexterity saving throw, taking 35 (10d6) radiant damage on a failed save, or half as much damage on a successful one.

Healing Touch: The astral sentinel can touch a creature and restore 30 hit points. It can use this ability three times, and it regains expended uses after finishing a long rest.

Celestial Radiance: The astral sentinel sheds bright light in a 30-foot radius and dim light for an additional 30 feet. Creatures that start their turn within the bright light gain temporary hit points equal to half the astral sentinel's level (rounded down).

Ethereal Movement: The astral sentinel can move through other creatures and objects as if they were
difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

Ethereal Sight: The astral sentinel can see in normal and magical darkness, see invisible creatures
and objects, and can see into the Ethereal Plane within 120 feet of it.

Divine Presence: The astral sentinel can use its action to emit a wave of divine energy. Each creature of the sentinel's choice within 30 feet must make a DC 17 Wisdom saving throw, taking 35 (10d6) radiant damage on a failed save, or half as much damage on a successful one. Additionally, creatures that fail the saving throw are blinded until the end of their next turn.

Celestial Longsword. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 target. Hit: 15 (2d8 + 6) [slashing] damage plus Hit: 14(4d6) [radiant] damage. 

Astral Shield: The astral sentinel can use its reaction to grant itself or a creature it can see within 30 feet a +5 bonus to AC against one attack. The target gains resistance to all damage from that attack.