An angel is a celestial agent sent forth into the planes to further its god's agenda for weal or woe. Its sublime beauty and presence can drive awestruck onlookers to their knees. Yet angels are destroyers too, and their appearance portends doom as often as it signals hope.

Shards of the Divine. Angels are formed from the astral essence of benevolent gods and are thus divine beings of great power and foresight.
Angels act out the will of their gods with tireless devotion. Even chaotic good deities command lawful good angels, knowing that the angels' dedication to order best allows them to fulfill divine commands. An angel follows a single driving purpose, as decreed by its deity. However, an angel is incapable of following commands that stray from the path of law and good.
An angel slays evil creatures without remorse. As the embodiment of law and good, an angel is almost never mistaken in its judgments. This quality can create a sense of superiority in an angel, a sense that comes to the fore when an angel's task conflicts with the goals of another creature. The angel never acquiesces or gives way. When an angel is sent to aid mortals, it is sent not to serve but to command. The gods of good therefore send their angels among mortals only in response to the most dire circumstances.

Immortal Nature. An angel doesn't require food, drink, or sleep.

Solar. A solar is godlike in its glory and power.
On the battlefield, the solar's sword flies into the fray on its own, and a single arrow from a solar's bow can strike a target dead on contact. So great is a solar's celestial might that even demon princes shrink at its resonant commands.
It is said that only twenty-four solars exist. The few solars that are known are stewards of specific deities. The others rest in a state of contemplation, waiting for the time when their services are needed to stave off some cosmic threat to the cause of good.

The Storm Herald

Zephyros, also known as the Storm Herald, is one of the few known solars. Formed from the astral essence of benevolent gods combined with the relentless wrath of the primordial storms, he is an unyielding warrior, an embodyment of divine rage.

Zephyros usually appears as a roughly 10 feet tall, muscular humanoid figure with dark hair, glowing yellow eyes and great white, angelic wings. He is clad in a suit of full plate armor made of blackened Mithral with a white scapular worn over it and wields an enormous greatsword known as the Stormcleaver, with lightnings constantly crackling around its mighty blade.

Like all solars, Zephyros has a great desire to purge evil creatures from existence, however he is, more than others, actively fighting and destroying the bastions of evil - it is said that this serves as a vent for him to release the ever-accumulating wrath of the primordial storm within himself in a controlled manner, and if he wouldn't be able to release it, the wrath would grow so strong that he could eventually lose control of it and thus of himself...

Many fear Zephyros due to his destructive wrath and view him as a harbringer of disaster. However, he is still a solar, lawful good, and those who know him well say he actually has a heart of gold, one just should be careful to not anger him - he despises injustice, can be a good and caring friend, a loyal companion and is a respectful warleader, who doesn't send in his forces recklessly only to watch them dying.

Leader of celestial armies. The Storm Herald is known to lead vast armies of celestial forces, including lesser angels like planetars or battleforce angels, and sometimes even powerful mortal warriors, to war - which is why some call him by titles like Warlord of the Sky or similar. The march of these armies is like rolling thunder, and their wrath is unstoppable and relentless. Zephyros prefers leading his armies from the front, unleashing a tremendous battlecry, which echoes over the battlefield like rolling thunder, using primordial rituals to call devastating thunderstorms and using his divine might to protect and empower those who are on his side, while his sword smashes through the foe's defenses on its own.

Blessing of the Storm Herald. The Storm Herald blesses those who fight with him, and might even share a spark of his power with those he deems worthy. A creature blessed by the Storm Herald gains the following benetis for the next 24 hours:

• The creature's strength score becomes 25 if it isn't already 25 or higher.
• The creature is considered to be under the effects of an investiture of wind spell.
• The creature gains immunity to lightning and thunder damage.
• The creature can cast the zephyr strike and thunderous smite spells at will.

Stormcaller. Zephyros has the power to create storms within 5 miles of himself by performing a primordial ritual for one minute, as if he was casting a spell, for each storm. While he takes control of the weather in this way, any other weather-influencing magic used by mortals and in general beings of lesser power fails. 
Each storm he creates spreads out to a radius of up to 500 feet, brings torrential rainfall and strong winds, lightly obscuring the area beneath it, extinguishing any open flames, imposing disadvantage on ranged weapon attacks and automatically dispersing fog, mists, and similar phenomena in the area, whether mundane or magical. Zephyros can have one of his storms under direct control, allowing him to shape its effects as he desires. If Zephyros starts combat with a storm under his control, he has a challenge rating of 30 (155 000 XP). 

At initiative count 20 (losing initiative ties), if he has summoned at least one thunderstorm, he can take a lair action to create one of the following effects, he can't choose the same effect twice in a row:

•  Lightning Strikes. Zephyros calls down six bolts of lightning from a storm, hitting six points of his choice beneath that storm. Each creature within 10 feet of at least one of these points must make a DC 26 dexterity saving throw, taking 54 (12d8) lightning damage on a failure or half as much on a success.
• Crash of Thunder. Zephyros causes one storm to unleash a deafening crash of thunder. All creatures of his choice in the area beneath that storm must make a DC 26 constitution saving throw, taking 18 (4d8) thunder damage on a failure or half as much on a success. In addition, a creature who fails the saving throw is deafened until the end of its next turn.
• Downburst. Zephyros causes one storm to produce roaring, gale-force gusts of wind combined with intense downpour. All creatures of his choice in the area covered by that storm must make a DC 26 strength saving throw or are knocked prone.
• Hail. Zephyros commands one storm to drop large hailstones. All creatures of his choice in the area beneath that storm must make a dexterity saving throw, taking 9 (2d8) bludgeoning damage or half as much on a success. In addition, the ground in the area counts as difficult terrain for the next minute or until Zephyros uses this action again.
• Whirlwind. Zephyros commands the storm to produce a tornado. The tornado howls down on a point of his choice in the area beneath that storm, works like the whirlwind spell and lasts for the next minute or until Zephyros uses this action again. While the tornado persists, Zephyros can, as a legendary action, move it up to 30 feet in any direction along the ground.