Steel of the Flame Emperor (Patreon)

Weapon (longsword), artifact (requires attunement)

Blackened steel wreathed in searing flame, a fragment of the Flame Emperor lies crowned within this monument to glory. You gain a +3 bonus to attack and damage rolls you make with this magic weapon. This weapon has a number of charges equal to twice your Charisma modifier and regains all charges daily at dawn. This weapon deals fire damage instead of slashing. While attuned to this weapon you have resistance to fire damage.

While holding this weapon, you can use an action to expend some of its charges to cast one of the following spells from it: Searing Smite (1 charge), Fireball (2 charges), Flame Strike (4 charges). The DC for these spells is 16 or your spell save DC, whichever is higher.

Herald of the Flame Emperor. Burn away the lies and shadows, lead your allies to victory. While holding this weapon you can spend 4 charges as an action to summon a small crown of fire that floats above your head, inspiring your allies and igniting your foes. While this property is active, you gain the following benefits:

You shed bright light in a 30-foot radius and dim light for an additional 15 feet. Magical darkness created by spells of 5th or lower level can't extinguish the light. Invisible creatures and objects are visible as long as they are in the bright light.

When a creature you can see enters the bright light of this property you can use your reaction to make a ranged spell attack against the creature. The crown shoots a lance of flame and makes its attack roll with a +7 bonus. On a hit the target takes 8d6 fire damage and is set on fire until the start of your next turn. While a creature is set on fire by this property it sheds dim light in a 10- foot radius. Any attack roll against the creature has advantage if the attacker can see it, and the affected creature can't benefit from being invisible.

The weapon attacks of all allied creatures within the bright light of this property gain a +1 bonus to attack and damage rolls and count as magical for the purposes of overcoming damage immunities and resistances.

This property ends after 10 minutes or if you are knocked unconscious.

Burning Accolade. As a bonus action you can spend a number of charges to infuse your allies with the blessing of the Emperor. For the next minute or until you are knocked unconscious, a number of creatures of your choice within 30 feet of you equal to the number of charges spent become wreathed in golden flame. While in this state a creature's speed is increased by 10 feet and its melee attacks deal an additional 1d6 fire damage. If you score a critical hit with this weapon while one or more creatures are affected by this property the bonuses are increased to 15 feet and 2d6 fire damage until the start of your next turn.

The warrior crawled listlessly upon the blood-soaked earth. Darkness slowly descended upon him, threatening to swallow him as surely as it had his squadron. Yet through his now blurring vision, a golden light crept into frame. A blade as glorious as the sun, sputtering with flame as if to ward off the despair that seemed to lift from his shoulders. Filled with renewed vigor, he ignored the pain flaring from his wounds as he grasped the weapon without another thought. In an instant he felt the touch of the Emperor upon his very essence, a sensation as exhilarating as it was enthralling. As he lifted the blade to the blackened skies, those that yet held breath within their bodies looked at this blazing avatar of hope that now stood before them, radiant and magnificent, and felt their spirits soar in response.