"Maugnetics need to apply a combination of Soo and their blood to their Mithril Relics for it to be usable.
There are two reasons why they do this. First, the blood will allow the Mithril Relic to be bonded to the Maugnetic. It will allow them to much more easily channel their Aubilities through this weapon.
The second reason is that the Soo has a special property that allows the Mithril Relic to withstand the power of a Diva. Without Soo, the Mithril Relic would start to disintegrate per use, completely wasting the weapon."
Seberus then gestured to Michael to give him the Mithril Relic. "May I?'
Michael gave it to him, and the Tower Master began to inspect the weapon.
"Do you see this oily sheen on the blade?" he asked.