What Must Be Done.

The realm lord nodded and said, "Ok. It will come in handy."

The first sage continued, "The second compensation is something that is especially useful against spiritual entities. I learned this from my encounter with our mutual acquittance in the Spiritual Dimension that has passed away. This object can freeze the consciousness." 

The green elf cocked an eyebrow. "What use is that to me?" 

The first sage was still confident. He said, "This method is so powerful that even spiritual entities that can become intangible have to be wary of it. With it, you can be confident of restricting such an entity."

The realm lord was skeptical. "Even if it is so great, I still don't have a need for it." 

"You might not be able to use it personally, but you can give it to someone else who might have a need for it or who can use it for you." 

The realm lord sighed. He said, "I'm guessing you won't be telling anyone about my acquisition of this item."