"i documented myself and found out that it's near impossible, if not impossible, given the nature of the spirit that I want to trap.
What about the name? If I saw it in a nightmare induced by the spirit but forgot it, how would I make it resurface?
I shall add that I have a witch at my disposal. Trainee, but a witch nonetheless."

"Mainly messing with my mind in any way imaginable and hurting my friends."

"That's true, though, I think that s/he's stated that the creature does in fact want to cause harm or disarray to him/her. This doesn't sound like Caspar to me, rather, this really does sound like something that is mischievous, if not malevolent. "

"I don't think so. As I said, humans tend to believe that simply because something harmed them that it desires that. Leave it at this, if a creature that strong wanted to harm anything, it would have already killed them. "

"I do communicate with it. Well, it's more a one-way communication, it just tends to send mental images and messages to me in it' distinctive voice. So yes, I communicated with it but it does want to harm me. But without killing me so quickly, so he can feed on the pain and fear of mine and others around me. How am I supposed to take action?"