One advantage we have is that the three of us have all experienced the full course of Cardman City being swallowed by the Star Realm. We're very familiar with fighting in the shadow of the Star Realm and know how to protect ourselves from the scourge of tainted spiritual energy.
I don't think that the Wolf People are able to figure this out on their own.
Apart from my warriors, this battle doesn't require the participation of other forces. Not that I'm underestimating you, but while I'm taking risks, you all will have to take on equally dangerous responsibilities.
The Star-world Tear...
Even a small to medium-sized Star-world Tear can't be accomplished easily, and the amount of spiritual energy needed to destroy the mapped relationship between the material world and the Star Realm is astronomical.
Out of all the methods we currently have at our disposal, only one thing can do this in a short period of time."