Blade of Wispification
This magical blade penetrates any kind of armor and turns its victim into a wisp, a disembodied evil soul.
Attacks with this weapon ignore non-magical armor and shields, and cannot be parried. This usually means the target AC is reduced to unarmored AC. The Blade of Wispification has +1 to hit and deals an additional 1d8 lightning damage, this lightning damage is not affected by critical hit bonuses.
Curse:
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A target that got hit but not killed then becomes slightly incorporeal, gaining resistance against acid, cold, fire, necrotic, thunder; bludgeoning, piercing, and slashing from nonmagical attacks and immunity to poison and lightning. A target killed by this blade becomes a Will-O'-Wisp that regards anyone except its killer as hostile. It will also not attack other Will-O'-Wisps as it knows that is futile.
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