Weapon

Rare Arcane, Evocation Requires Attunement

Weapon (any melee weapon), rare (requires attunement)

Enchantment

While holding this magic weapon, you can take a Bonus Action and use a command word to cause flames to engulf the damage-dealing part of the weapon. These flames shed Bright Light in a 40-foot radius and Dim Light for an additional 40 feet. While the weapon is ablaze, it deals an extra 2d6 Fire damage on a hit. The flames last until you take a Bonus Action to issue the command again or until you drop, stow, or sheathe the weapon.

Enchantment Weapon Skill
The Weapon skill provided by this enchantment changes based on which damage type the weapon deals, between Bludgeoning, Piercing, and Slashing.

Flame Burst. If the base weapon with this enchantment deals Bludgeoning Damage, then the enchantment provides this Weapon Skill. As part of your attack action, you may spend one weapon skill use to replace one of your attacks made using this weapon with a Flame Burst attack. When you make a Flame Burst attack a eruption of objects and flame explode out from where you strike. You attack one creature, location, or object within your melee range, dealing the weapons damage as normal on a successful attack. Creatures and objects within 5 feet of your target (excluding yourself) must make a dexterity saving throw against your Weapon Save DC taking the weapon's damage on a failed save, or half damage on a successful save.

Flame Lash. If the base weapon with this enchantment deals Piercing Damage, then the enchantment provides this Weapon Skill. As part of your attack action, you may spend one weapon skill use to replace one of your attacks made using this weapon with a Flame Lash attack. When you make a Flame Lash attack a lash of flame extends from the weapons tip. Each Creature in a 20 foot line must make a dexterity saving throw against your Weapon Save DC taking the weapon's damage on a failed save, or half damage on a successful save.

Flame Reave. If the base weapon with this enchantment deals Slashing Damage, then the enchantment provides this Weapon Skill. As part of your attack action, you may spend one weapon skill use to replace one of your attacks made using this weapon with a Flame Reave attack. When you make a Flame Reave attack a slash of flame leaves the blade striking a target within 60 feet. Make an attack roll as normal, but the attack can target creatures and objects within 60 feet of you, rather then your melee range.

Weapon Properties

The same as the specified weapon's weapon properties.

Weapon Skills

The same as the specified weapon's weapon skills.

Weapon Passive

The same as the specified weapon's weapon passive.

A dull orange and red glow hums from the arcane runes etched into this weapon. It emanates a slight warmth felt even before you touch it as well as a subtle toasting or burning smell.

Crafting

Based on Heliana's Guide crafting rules

Cost: 4,000 gp + the cost of the weapon
Weight: Varies