Shifting Form of the Fey. Wren can change her form as a bonus action.
Neutral Form.Wren has advantage on checks to see through illusions.
Summer Form.  Wren gains a resistance to fire damage,  can cure the discomfort of ambient cold in the environment with a touch, and can make an alteration to her casting of fire bolt, such that she may roll 2 attacks per casting.
Winter Form. Wren gains resistance to cold damage,  can freeze up to 4 cubic feet of liquid, and exchanges use of Fire Bolt, for Frostbite

Fey Nature. Wren does not sleep naturally, and is immune to magical attempts to make her sleep.  She has advantage on saves made to resist the Charmed condition.  She can cast disguise self at will using her spell save DC.

Fey Touched (long rest).  Wren can cast misty step, without consuming a spell slot.

Iron Aversion. Wren takes 1d4 damage if she comes into contact with Iron.

Aversion from Distortion.  Wren will not knowingly speak a lie.

Staff of Healing (10 Charges). Wren has a staff of healing she can spend 5 charges to cast mass cure wounds, 2 charges to cast lesser restoration, and 1-4 charges to cast cure wounds at a level of the the number of charges spent.

Cloak of Displacement. Wren has a cloak of displacement. All attacks on her are made at disadvantaged, unless she is restrained, or incapacitated.  If Wren takes damage, this effect is suspended until the start of her next turn.

Spellcasting. Wren is a 9th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 17, +9 to hit with spell attacks). Wren has following Sorcerer, & Cleric spells prepared:
Cantrips (at will): Control Flames, Dancing Lights, Fire Bolt/Frostbite, Mage Hand, Mending, Prestidigitation, spare the dying, word of radiance
1st level (4 slots): Chromatic Orb, Bless, Burning Hands, Cure Wounds, Magic Missile, Mage Armor, speak with animals
2nd level (3 slots): Lesser Restoration, Mirror Image, misty step, Scorching Ray, Spiritual Weapon
3rd level (3 slots): Beacon of Hope, Fireball, Revivify
4th level (3 slots): Death Ward, Ice storm, Guardian of Faith, Polymorph
5th level (1 slot): Animate Objects, Mass Cure Wounds, Raise Dead

+2 Morning Star. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit: 8 (1d8+4) Bludgeoning damage.