The preferred weapon of Klarg.
You have a +1 bonus to attack and damage rolls made with this magic weapon.
Goblinslayer: Your attacks against Goblins add an additional 1d6 to damage rolls.
Goblinsong: The weapon is cursed to hum forever from the screams of tortured Goblins giving disadvantage on all stealth checks.
Proficiency with a Morningstar 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.
Sap. If you hit a creature with this weapon, that creature has Disadvantage on its next attack roll before the start of your next turn.
Notes: Bonus: Magic, Stealth Disadvantage: Impose, Damage, Combat, Sap
Very open to suggestions on making this a balanced and useful weapon. My DM created it during our latest run in LMoP.