Special Equipment. Cult of the Dragon - Wyrmspeaker Staff

Arcane Recovery (1/Day). When she finishes a short rest, she recovers all her spell slots of 5th level and lower.

Legendary Resistance (3/Day). If she fails a saving throw, she can choose to succeed instead.

Concentration Mastery. The Wyrmspeaker can concentrate on 2 spells at once and makes all concentration checks with advantage.

Spellcasting. The Wyrmspeaker is a 20th-level spellcaster. Her spellcasting ability is Intelligence (spell save DC 21, +14 to hit with spell attacks). She can cast disguise self and invisibility at will. She can cast fly and lightning bolt once each without expending a spell slot, but can’t do so again until she finishes a short or long rest. She has the following wizard spells prepared:

Cantrips (at will): dancing lights, fire bolt, light, mage hand, prestidigitation

1st level (4 slots): mage armor, magic missile, shield, silent image

2nd level (3 slots): arcane lock, Misty Step, darkvision, knock, Dragon's Breath

3rd level (3 slots): counterspell, dispel magic, fireball

4th level (3 slots): confusion, hallucinatory terrain, polymorph

5th level (3 slots): Bigby’s hand, geas, wall of force, Synaptic Static,

6th level (2 slots): chain lightning, globe of invulnerability, programmed illusion

7th level (2 slots): finger of death, symbol, teleport

8th level (1 slot): maze, mind blank

9th level (1 slot): Power Word Kill, Invulnerability

Wyrmspeaker Staff. She uses her Wyrmspeaker Staff which acts as a +3 staff and has the same abilities as a Dragon-Touched Focus Wakened version from a Chromatic Dragon.

The Wyrmspeaker Staff gives her Adv on Initiative rolls, does an extra D6 damage on spells that deal acid, cold, fire, lightning, or poison damage. Once per day can cast the following spells at will:  Hold Monster, Rime's binding ice Additionally can cast one spell as if it were cast from a level 9 spell slot per day.

The Wyrmspeaker can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. She regains spent legendary actions at the start of her turn.

Cast Spell. She casts a spell of 3rd level or lower.

Spell Ward (Costs 2 Actions). She expends a spell slot of 4th level or lower and gains 5 temporary hit points per level of the slot.