Attached to an old, rusty hilt, wrapped in a red, scaly leather is a pitch black, obsidian blade. As you pull it out of its scabbard it lights on fire, and on the first attack it does an additional 2d6 fire damage, target takes half damage if they succeed a DC10+char level dexterity saving throw (on fire damage only). The sword is +1 to hit, 2d6+3 damage. It is two-handed, and heavy (6lb).
Proficiency with a Greatsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Graze. If your attack roll with this weapon misses a creature, you can deal damage to that creature equal to the ability modifier you used to make the attack roll. This damage is the same type dealt by the weapon, and the damage can be increased only by increasing the ability modifier.
Notes: Bonus: Magic, Damage: Fire, the first time the wielder draws it from the scabbard, Damage, Combat, Heavy, Two-Handed, Graze