Astral longsword

You have +3  on attack and damage rolls made with this magic weapon. This weapon has 6 charges, you can expand a charge to make a dc 13 wisdom save. On a success choose a place 50 feet away from you or closer, create a 15x15 square of light that does 2d8 radiant damage for every 4 levels this increases by 1d8,  it disappears after your turn. The sword will glow casting a 10x10 square of light. Make a dc23 constitution save on a success 3 creatures 50 feet or closer take 6d12 radiant damage for every 10 levels increase this by 3, on a fail you take 5d8 radiant and go unconscious. Your perception gets a +3 when you are using this weapon. You recover 1d4 charges every night. You can expend 2 charges to cast the spell moonbeam as a spell one level lower than your level but level 2 if you are lower than third level.

 

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

Notes: Bonus: Magic, Damage: Radiant, Damage: Necrotic, spend 30 minutes under the stars alone, the blade must be exposed to the stars and if something is hiding the stars or the blade it won't work., Damage, Combat, Versatile, Sap