Amorphous Alloy: Glaive Form

Rumors speak of the hideous Hellsmiths that wield weapons of molten metal, shaping this specialized alloy to their own whim and crafting weapons for the fiends at its side. When you attune to this weapon, you can safely touch and carry the blade though anyone within 5 ft. of it feels unbearable heat emanating from it. You have a +1 bonus to attack and damage rolls made with this magic weapon.

When you find this weapon, it is in the form of either a greatsword, a greataxe, or a glaive. Once per round when you hit with an attack with this weapon, you gain one charge of Hellsmith's Heat up to a maximum of 5. If you do not hit with an attack with this weapon during your turn, you lose a charge of Hellsmith's Heat to a minimum of 0.

Hellsmith's Heat. For each charge of Hellsmith's Heat you have, add +1 fire damage to any successful attacks with this weapon. When you are at 5 charges of Hellsmith's Heat, you can use an action to emit a wave of scorching air around you and change the form of this weapon.

Creatures within 20 ft. of you must make a DC 16 Constitution saving throw taking 3d8 fire damage on a failed save or half as much on a successful one. You can then choose to change the weapon's shape to either a greatsword, a greataxe, or a glaive. You then lose all charges of Hellsmith's Heat.

Proficiency with a Greatsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Proficiency with a Glaive allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Fire, Transforming, Heavy, Reach, Two-Handed, Graze