The first comment seems a bit misleading. It sounds to me more like "if the sword isn't cleaned properly after being used to draw blood, the blood will rust and bleed again later when it's cleaned."
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If the sword was used to kill someone and then cleaned it's not going to bleed... or at least that's how I would understand that
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If the sword was used to kill someone and then cleaned it's not going to bleed... or at least that's how I would understand that