Supremacy
If Jason's experiment worked, normal enslavement soul pacts would lose their worth, turning into nothing but scrap as long as someone with a dominant soul world was eager to rescue everyone.
"Even though the Great Argos war has ended, the situation is still tense. As the Myöldra race continues to be the Drake clan's staunch supporter, nobody can attack them. At least, not without them waging another war against us. It would cause a chain reaction and we wouldn't be able to survive this time….
Another attack of the Overlord beasts is not something we would want at any cost!!
As such you..or even we might be able to lower the Drake clan's combat strength by a vast amount.
Most of their powerhouses, let alone newer generations of the clan members, are in an enslavement soul pact after all!"