It says Attack/Save: None. The text says Wisdom save, and another save every 15 days.
If the victim makes one of those every 15 days saves they get back "some of all" their memories and this isn't defined in any way. How much do they get back and how long for full recovery?
The memories get stored and the only listed way to get them all back is a Wish or to break the diamond the memories are stored in. That does a trivial amount of damage, but it causes unconsciousness for a considerable amount of time. The victim will be helpless on their own.
The caster gets the memories. They can experience them as if seeing through the victim's eyes. They get to pick which ones, though I don't know how they would tell what they want to see without seeing it first. What game effect does that have?
They get to see what the victim saw. Do they get any of the other senses? What are their own senses doing at the time? How long do they have to spend? If they are experiencing those memories in real time, it could take a few minutes to find what they want to know, assuming they can, and hours or days to experience it. It wouldn't help much if it was not full sensory, so what if something bad happened to the victim? Could the caster get blinded or deafened, or take hit point damage when the victim took a painful wound? What happens if the caster is spending hours experiencing stolen memories and something happens to their own body?
What happens if they review the memories of the victim while the victim was being trained? Do they get to learn the same things? Can they take new proficiencies, skills, professions, or learn how to use new tools? Can they learn new feats? How about class levels? Ability score increases? It seems unlikely they would get any physical stat bonuses, but mental ones? Can they become more charismatic because they watched the victim persuade a bunch of people? How much time exactly will that take for any of it? If they are in real time, it could be a matter of *years*.
In the real world, memory works by association. Each thing reminds you of something else. A good feeling may be caused by a smell you didn't even realize was present and that triggers a memory. Smelling an apple leads to thinking of peeling it, to knives, to swords, to learning to use a sword, to how much it hurt to be cut with one. You end up not liking apples because of it, or maybe you got a great victory in battle and now apples are your favorite. Everything gets associated with everything else. Dreams may well be what happens when the unconscious mind is throwing together things that have no relationship, and your conscious but sleeping mind is trying to make sense of it.
How do you keep your own memories separate from the victim's once you have reviewed them? It ought to be incredibly confusing. Would it affect your personality, or change your Alignment? If your victim was insane do you get driven mad too?
What is the point and purpose of the spell? It seems like a poor way to get information, given that you won't know how to find out what you want to know. You have to already know a secret to look for it. Is it worth the time, risks, and a 1000 gp diamond to confirm something you already knew? Maybe that would be handy at a trial. All the victim remembers is their name and how to speak. All traces of identity lost. Do they remember how to feed themselves? Dress themselves? Keep themselves clean? Walk? What exactly will you do with them?
https://www.dndbeyond.com/spells/958342-memory-drain
It says Attack/Save: None. The text says Wisdom save, and another save every 15 days.
If the victim makes one of those every 15 days saves they get back "some of all" their memories and this isn't defined in any way. How much do they get back and how long for full recovery?
The memories get stored and the only listed way to get them all back is a Wish or to break the diamond the memories are stored in. That does a trivial amount of damage, but it causes unconsciousness for a considerable amount of time. The victim will be helpless on their own.
The caster gets the memories. They can experience them as if seeing through the victim's eyes. They get to pick which ones, though I don't know how they would tell what they want to see without seeing it first. What game effect does that have?
They get to see what the victim saw. Do they get any of the other senses? What are their own senses doing at the time? How long do they have to spend? If they are experiencing those memories in real time, it could take a few minutes to find what they want to know, assuming they can, and hours or days to experience it. It wouldn't help much if it was not full sensory, so what if something bad happened to the victim? Could the caster get blinded or deafened, or take hit point damage when the victim took a painful wound? What happens if the caster is spending hours experiencing stolen memories and something happens to their own body?
What happens if they review the memories of the victim while the victim was being trained? Do they get to learn the same things? Can they take new proficiencies, skills, professions, or learn how to use new tools? Can they learn new feats? How about class levels? Ability score increases? It seems unlikely they would get any physical stat bonuses, but mental ones? Can they become more charismatic because they watched the victim persuade a bunch of people? How much time exactly will that take for any of it? If they are in real time, it could be a matter of *years*.
In the real world, memory works by association. Each thing reminds you of something else. A good feeling may be caused by a smell you didn't even realize was present and that triggers a memory. Smelling an apple leads to thinking of peeling it, to knives, to swords, to learning to use a sword, to how much it hurt to be cut with one. You end up not liking apples because of it, or maybe you got a great victory in battle and now apples are your favorite. Everything gets associated with everything else. Dreams may well be what happens when the unconscious mind is throwing together things that have no relationship, and your conscious but sleeping mind is trying to make sense of it.
How do you keep your own memories separate from the victim's once you have reviewed them? It ought to be incredibly confusing. Would it affect your personality, or change your Alignment? If your victim was insane do you get driven mad too?
What is the point and purpose of the spell? It seems like a poor way to get information, given that you won't know how to find out what you want to know. You have to already know a secret to look for it. Is it worth the time, risks, and a 1000 gp diamond to confirm something you already knew? Maybe that would be handy at a trial. All the victim remembers is their name and how to speak. All traces of identity lost. Do they remember how to feed themselves? Dress themselves? Keep themselves clean? Walk? What exactly will you do with them?
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