Wyrmlord Ulwai Stormcaller

Arcane Advantage. Once per turn, Ulwai can deal an extra 7 (2d6) damage to a creature it hits with a damaging spell attack if that target is within 5 feet of an ally of Ulwai that is
not incapacitated.

Army Arcana. When Ulwai casts a spell that causes damage or that forces other creatures to make a saving throw, she can choose herself and any number of allies to be immune to the damage caused by the spell and to succeed on the required saving throw.

Bardic Inspiration. College of Valor Bard (PHB 55)

Countercharm. Ulwai and any allies within 30 feet gain advantage on saving throws against being frightened or charmed.

[feat]Draconic Ancestry[/feat]: Blue dragon. (PHB 102)

Elemental Charge. Ulwai can (as a free action) use a charge from any magic item (such as her Staff of Stormclouds) to send a charge of converted energy into a melee weapon,
thus adding an additional 6 (1d8+3) lighting damage to it. If she is using her Storm's Fury ability as a reaction the damage will stack accordingly for a total of 12 (2d8+6) damage.

[feat]Song of Rest[/feat]. 1d8 (PHB 54)

Spellcaster As 9th level devastator (bard/sorcerer). Spell save DC 15, Spell Attack bonus +7
Cantrips: message, shocking grasp, true strike, vicious mockery
1st level (4 slots): faerie fire, sleep, Tasha's hideous laughter
2nd level (3 slots): dragon's breath, heat metal, shatter
3rd level (3 slots): dispel magic, stinking cloud, lightning bolt
4th level (2 slots): greater invisibility, elemental bane

Tempestuous Magic. When Ulwai casts a spell she can use a bonus action to launch 10 feet up in the air without provoking opportunity attacks.

Multiattack Ulwai can make 2 whip attacks when she uses the Attack action.

Longbow +1. Ranged Weapon Attack: +10 to hit, range 150/600ft., one target. Hit: 8 (1d8 + 5) piercing damage. Arrows of Shock +1 used with this weapon (qty: 20) adds an additional 5(1d8+1) thunder damage.

Staff of Stormclouds +1 Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit: 6 (1d6+2) bludgeoning and Hit: 7 (1d8+2) lightning damage (see New Items section for details.)

Whip +1 Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 8 (2d6 + 1) slashing damage.

Storm's Fury. When Ulwai is hit by a melee attack she can use her reaction to deal 7 (1d8 +3) lightning damage to the attacker.