You have a +1 bonus to attack and damage rolls made with this magic weapon and it bears the symbol of the Knights of the Eclipse. When you hit an enemy with the sword, they must succeed on a DC 15 WIS save or they are effected with the withered condition. If they fail the save, then they take 1d4 necrotic damage as well as Witherwrath damage. If they succeed, then they aren't infected with the withered condition. The effect is at the start of their turn, they take 1d4 of damage and their movement is cut in half. They can reroll the save at the beginning of their turn.
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, Combat, Heavy, Two-Handed, Graze