Demon Blades

Roughly the evil equivalent to a Death Scythe for Dark Weapons, these terrifying, insane beings are formidable opponents that could (but not necessarily are) nearly twice as powerful as their counterpart. This makes them 1/6th of the way to reaching Kishin level. Although they are capable of the same no-sacrifice ability as a Death Scythe, it is highly debatable whether they also retain the same Grigori Wing ability, as the corruption might make it impossible, disagreeing too heavily with such souls. However, such has never been attempted. Purging a Demon Blade removes soul count and levelled abilities, not madness or corruption, though it does lessen madness.