Mementomancy: The Magic of Memory

Luggy's Gullible Gaslight

Enchantment cantrip

• Casting Time: 1 action
• Range: 30 feet
• Components: V S
• Duration: Concentration, up to 1 hour

You attempt to subtly reshape the memories of one creature you can see that isn’t hostile toward you. The target makes a Wisdom saving throw. On a failed save, you can affect the target’s memory of an event that it experienced within the past hour that lasted no more than 10 minutes. You can change its memory of the details of the event, so long as the new details are logical.

If you concentrate on this spell for its full duration, the target's memory remains altered indefinitely. If the spell ends early, the creature realizes that you used magic to alter its memory and becomes hostile toward you.

A Remove Curse or Greater Restoration spell cast on the target restores the creature's true memory.

Deja Vu

1st level Enchantment

• Casting Time: 1 reaction, which you take when a target ends its turn within range
• Range: 30 feet
• Components: V S
• Duration: Instantaneous

You reach into the the mind of a creature you can see and put its thought processes into a temporary loop. The target must make a Wisdom saving throw. On a failed save, it must use its reaction to repeat the actions and movement it took on its turn in the same order and directions. If the target cannot safely continue to take the same actions or movement again (if a foe the target attacked is out of range, the target is out of spell slots, or a cliff is in the target's path, and so on), the target remains at its current location and does nothing further.

Memory Transfer

1st level Divination (ritual)

• Casting Time: 1 action
• Range: Touch
• Components: S
• Duration: Instantaneous

You transfer your memory of an event that lasted no more than 10 minutes to a willing creature that you touch. Alternatively, the creature can transfer its memory of an event to you. The receiver of the memory can recall it as accurately as the sender.

Luggy's Familiar Face

2nd level Enchantment

• Casting Time: 1 action
• Range: Self
• Components: V S M (a small amount of makeup or a cosmetic applied to the face as this spell is cast)
• Duration: 1 hour

You subtly disguise your appearance to look different yet oddly recognizable. For the duration, you have advantage on all Charisma checks directed at creatures of your choice that aren’t hostile toward you. In this disguise, an affected creature believes it remembers you from somewhere, but it can't seem to remember where. If you give the creature a reason for it to recognize you, it is inclined to believe you so long as the reason is logical. It maintains this belief after the spell ends unless it sees you transition in or out of your disguise, at which point the creature realizes that you used magic to alter its memory and becomes hostile toward you.

To discern your true identity or determine that any reasons you gave were false, a creature can use its action to recall from its memory and must succeed a successful Intelligence (History) check against your spell save DC.

Memory Recall

2nd level Divination (ritual)

• Casting Time: 1 action
• Range: Self
• Components: S
• Duration: Concentration, up to 1 hour

You recall the memory of an event within the last 24 hours that lasted no more than 10 minutes within your mind. Your body remains in a meditative state while you experience all the senses you felt in the memory in perfect recollection and vivid detail. You can also use an action to fast forward, rewind, or pause the memory at any point.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, you can recall a memory from an additional 24 hours prior for each slot level above 2nd. When you cast this spell using a spell slot of 9th level, you can recall a memory from any point in time.

Art: Gilderoy Lockhart by Nathaniel Santoso

Memory Removal Table

You cannot remove an implicit memory with this procedure, such as knowledge on how to use a tool or speak a language.

The subject is aware its memory is being removed and the approximate age of the highest targeted memory level, and it begins to relive those memories as they fade into oblivion. If the subject is not willing to have its memories removed, it must make a Wisdom (Insight) check contested by your Intelligence (Arcana) check every 20 minutes of the procedure. It gains a bonus to the checks equal to the highest targeted memory level. If the subject wins two contests, its memories are not removed and it cannot be affected by this procedure for 24 hours.

Memories removed from the permanent hole form into a tangible string of glowing energy called a memory strand. It has 2 hit points and can burst with a DC 17 Strength check. The length of this strand depends on the highest memory level contained in it, but it shrinks to fit its surroundings and can be stored in a tiny container such as a vial. It can also be inserted into a creature's mind via the permanent hole created during a memory removal procedure or another hole such as a mouth or nostril, whether it belongs to the original subject or another creature. This creature would then gain every memory attached to the strand as if it were their own.

Cult of The Plunge (DM's eyes only)

In the shifting world of Charybdis, a cult known as the Children of the Plunge spread the teachings of this tome like a virus. Donning a plunger-like wig to hide the scars on their heads, they seek to erase the memories of every living being and "plunge the world into oblivion," beginning a new era without trauma or pain. Some plungerheads use passive manipulation and only conduct the procedure on those who are willing, while others lead horrific crusades and use the memory strands of their victims to craft weapons, nooses, and oblex oozes.

Weapon of Memory Stealing

Weapon (any sword or whip), uncommon

You have a +1 bonus to attack and damage rolls made with this magic weapon. Its blade is made of pure energy that is fueled by the lifetimes of memories from those it has slain. The blade sheds light in a 10-foot radius and can be extended or retracted from the hilt when you command it. A creature that sees the blade can hear instances of any emotion you choose, such as joy or despair, from the memories it stores.