[Deathblob]

Try Mind Hunt with your god. Those boots let him teleport around without a lab. Still, the Mind Hunt will catch him 50% of the time, depending on ritual cast order. Use Pen items like Soy suggested. Mind Hunt gets a secret Pen bonus that plain old Soul Slay doesn't have, too. When the god's in your dom, his MR is weaker. So continue to blood sac.