Voltska, The Twice Striking Bolt

Lightning Strikes Twice:  When Volska is reduced to half hit points or if her young blue dragon mount is reduced to 0 hit points, she becomes Enraged. While enraged, she has access to all the features marked with Enraged, heals an amount of hit points equal to half the lightning damage she deals, and regains her reaction after every creatures turn.

Gathering Storm: At the start of each initiative count 20 (losing ties), voltska may create 2 5 foot radius circles of static on the ground within 60 feet of her. At the start of the next initiative count 20, lightning strikes each circle. Each creature in the circle when the lightning strikes must make a DC 15 dexterity saving throw or take 22 (7d6) lightning damage. While Enraged, Volzka may create 4 circles instead. 

Multiattack. Volska makes two attacks. If she is Enraged, She may make 3 attacks instead

Greatsword. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage. If Volska is Enraged, this attack deals an additional 7 (2d6) lightning damage.

Greatbow. Ranged Weapon Attack: +9 to hit, range 100/400 ft., one target. Hit: 11 (1d10 + 5) piercing damage.

Charged Punch. melee Weapon Attack: +9 to hit, reach 5ft., one target. Hit: 6 lightning damage and the target is pushed back 15 feet away from Voltska.

Lightning Breath (Recharge 5–6): Voltska exhales lightning in a 30-foot long 5 feet wide line. Each creature in that area must make a DC 15 Dexterity saving throw, taking 22 (7d6) lightning damage on a failed save, or half as much damage on a successful one. Whenever Volka or her mount uses this ability, it must recharge before either can use this ability

Lightning Charge (Recharge 5-6) (Enrage only): Voltska charges forwards in a 30-foot long 5 feet wide line. Each creature in that area must make a DC 17 Dexterity saving throw, taking 22 (7d6) lightning damage on a failed save, or half as much damage on a successful one. Creatures who fail the save by 5 or more are blinded until the end of their next turn.

Bolt: Voltska may take the dash action as a bonus action on her turn. When she does, she does not trigger opportunity attacks.

Charged Retribution: Whenever Voltska is hit by a melee attack, she may may use her reaction to make a Charged Punch attack against the attacker.

Mounted Combatant: Whenever Volkskas mount takes damage, she may use her reaction to take the damage instead.

Voltska 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. Voltska regains spent legendary actions at the start of her turn. 

Move: Voltska may move up to her movement speed. Alternatively, if she is mounted her mount may move up to its movement speed instead.

Mounted Strike: Voltska may make a Greatsword attack. Alternatively, if she is mounted she may command her mount to make a melee attack instead.

Charged Punch: Voltska may make a charged punch attack.