Heavensystem
Artifact weapon
Requires Attunement by non evil character
You gain a +3 bonus to Attack and Damage rolls made with this magic weapon. Upon attunement this weapon will take the form of any slashing of piercing weapon longer than a short sword that the user favors (or is proficient in). Any attack made against an evil or undead being roll at advantage and that creature takes an extra 1d10 damage when hit. Any attack made against an angel or angel blooded creature are always reduced to zero after all modifiers.
This item and it's wielder are immune to scry or similar effects, and benefits per the Bless spell.
(would you like to know more about the lore of Heavensystem? Let me know in the comments!)