You receive a +2 bonus to attack and damage with this weapon. The bonus +2 damage is fire damage.
Mark of the Fallen: As a bonus action, when you make a successful attack against a creature, you can choose to mark it with an infernal rune. The creature has to make a Wisdom saving throw (DC 15). On a failure it is marked, on a success nothing happens. When marked the creature has vulnerability to fire and necrotic damage for one minute. If a creature has immunity to these types of damage it becomes resistant, if the creature has resistance it loses its resistance. You can use this feature twice per day, if the save fails the use is also expended.
Proficiency with a Warhammer 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.
Push. If you hit a creature with this weapon, you can push the creature up to 10 feet straight away from yourself if it is Large or smaller.
Notes: Damage: Fire, Weapon Property: Versatile, Damage, Combat, Versatile, Push