Arye

Celestial Resistance. Arye has resistance to radiant and necrotic damage.

Guardian Aura. While Arye is conscious, all friendly creatures within 10ft of Arye gain a +4 to saving throws

Celestial Durability. Arye adds her cr x2 to her maximum hit points and 2 more each time she goes up a cr.

Spell Expertise. You have advantage on saving throws to maintain concentration and you can cast a spell as part of an opportunity attack with a reaction

Spellcasting. Arye is a 7th-level spellcaster. Its spellcasting ability is Cha (spell save DC 16, +8 to hit with spell attacks). Arye has following spells prepared:
Cantrips (at will): Guidance, True strike, Prestidigitation.
1st level (4 slots): Bless, Cure Wounds, Divine Smite, Healing Word, Guiding bolt, Thunderous Smite.                                                                                                                          2nd level (3 slots): Prayer of Healing, Misty Step, Suggestion.                                                3rd level (1 slot): Revivify, Call lightning, Counterspell.

Multiattack. Arye can make 2 Radiant Greatsword attacks or 2 Watcher's Light Spear

Radiant Greatsword. Melee Weapon Attack: +9 to hit. Hit: 16 (2d6 + 1d4 + 5) slashing and radiant damage.

Watcher's Light Spear Ranged Weapon Attack: +9 to hit, range 30/120 ft. Hit: 13 (1d8 + 1d4 + 5) piercing and radiant damage.

Healing Touch (2/day). Arye can touch a creature within 5 ft (including herself) and heal them for 20 hit points.

Lay on Hands (35 HP Pool). As an action, Arye can restore hit points up to a total of 35 to a creature she can touch (including herself).

Watcher's Ward. As a reaction, Arye can use her shield to intercept damage directed at a creature within 5 ft of her, reducing the damage by 1d6 +3

Parry. When Arye or an ally gets attacked within 5 ft of her, she can use her reaction to try and block with her sword, adding +2 to Arye or the ally's ac and potentially causing the attack to miss.