It might be possible to extract the rage that Apsu's death imbued in the dagger.

Of course, I'd have to do it without touching the dagger, somehow. That won't be easy, but if I had a Reverse Field Control Device, I might just be able to pull it off.

Player, can you get me one out of a Balaur Hider in Tiamat Stronghold? I promise you'll be well rewarded.

Player: Accept.

Did you get the Reverse Field Control Device? I can't proceed otherwise.

Player: "Right here."

Excellent. Hmm. I don't like using Shulack technology, but I suppose I can put that aside, for science.

Now I just need to build a tool to extract the emotion from the dagger.