Would you want a sword? A shield? A tome? Potentially an item of clothing? Something else?

What kind of power would you want it to have. Would you want it to have a special attack? Give you access to a special ability? Would you want it to give you godly insight? Something different?

Do you want said item to have a personality that is known to you? Do you want it to share opinions or please just shut up and stab things? Do you want it to be friendly? Annoyed? Aggressive? Aloof?

Do you want it to be related to your specific worshiped deity? Is random OK? Do you want its history to be known to you? Do you want it to be a secret that only I know? Do you want IT to share its past with you? Do you want to find out through ruins? Texts? Friendly NPC expo dump? Do you want me to hand a ten page document to another player and make them read it?

Take however long you want to think about this, there's no serious rush to it. There's plenty of IRL time and story time for you to stew on the question. If you'd rather I just make something up with no requests then that's completely cool too. Overall the design will still fall to me but if there's a specific idea you have then I can absolutely make those ideas the focus of what I design."

I have been wracking my brain trying to come up with something, but I've got nothing. He just brought it up again at last nights sessions, so I feel like we might be getting close to getting these items, and I could really use some help figuring out what to do.

For a little bit of context about my character, Her name is Aridani, and she is a Mephistopheles Tiefling, Cloistered Scholar background, Fiend Warlock and Knowledge Domain Cleric multiclass, whose favorite pastime is learning things and accumulating knowledge. It is also her pact with both Mephistopheles himself, who is her patron, as well as the god she worships as a cleric, who is unique to the world our DM created. She is a fairly shy bookworm, who is an absolute lightweight when it comes to drinking. She loves to sketch what she learns in her notebook as opposed to taking notes most of the time. She has Pact Of The Tome as her boon, with Eyes Of The Rune Keeper, Book Of Ancient Secrets, and Aspect Of The Moon as her Eldritch Invocations. One of her ritual spells she took with Book Of Ancient Secrets is Find Familiar, and her familiar is a Serendib Scops Owl with starry eyes named Dantalion. She has the Keen Mind feat, and the next time I get an ability score improvement I'm planning on giving her the Telepathic feat, so she can use it to cast Detect Thoughts, and then cast Encode Thoughts to pull memories out of peoples heads and put them in her own. If you would like to know anything else about her just let me know.

Any ideas for what sort of things to suggest to my DM for this magic item would be greatly appreciated.