The swords that she took out from her treasure vault. None of their reinforced strength and magic was effective at all.

If you used them to cut a Homunculus, it would be sharp enough to turn them into dark black stains. Not only that, it had the ability to “Absorb the souls of those injured by the blade”.

Yet the Three Sages’ bodies could endure it.

Magical Girl Raising Project: QUEENS, Chapter 8