Arcane Crusader

Keen Sight. The Celestial has advantage on Wisdom (Perception) checks that rely on sight.

Innate Spellcasting. The Celestials innate spellcasting ability is Charisma. It can innately cast the following spells, requiring no material components:

At will: detect magic, fog cloud, light, eldritch blast

3/day each: feather fall, fly, misty step, telekinesis

1/day each: control weather, gaseous form

Multiattack. The Celestial makes arcane crusaders pike two attacks.

Arcane Crusaders Pike. Melee Weapon Attack:  +15 to hit, reach 15 ft., one target. Hit: 21 (2d10+11) piercing damage plus 10 (3d6) force damage, the target must also succeed a DC 15 constitution saving throw or be stunned till the end of it's next turn. The magic Item has a maximum 8 charges which it regains at dawn. When it expends a charge, ruins along the entire weapon begin to glow and it casts the Magic Missile spell as an action. The spell has a range of 120 feet and fires three magic darts (can target one or many creatures), each deals 1d4+1 force damage. For every extra charge spent it creates another magic dart.

Magic Surge. Ranged Weapon Attack: +12 to hit, range 60/240 ft., one target. Hit: 35 (5d10 + 8) force damage.

Weave Disruption. When hit with a melee attack The magic weave constantly flowing through the Celestial can be disrupted. Roll a d20, on a 1-10 the creature attacking casts misty step, on a 11-20 the Arcane Crusader  casts misty step.

Armament Mastery. When hit with a weapon attack any bludgeoning piercing or slashing damage taken by the Celestial is reduced by 5.