Memory Thief

+2

While in sunlight, the memory thief has disadvantage on attack rolls and on Wisdom (Perception) checks that rely on sight.

The memory thief has advantage on saving throws against being charmed, and magic can't put them to sleep.

The memory thief makes two Shortsword attacks.

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage.

The memory thief casts a spell it has stolen, using its Perfect Copy reaction, by making an Intelligence (Arcana) check with advantage (DC equal to 10 + the level of the spell). The memory thief retains the spell on a failed check. Their innate spellcasting ability score is Charisma (save DC 14, +6 to hit with spell attacks).

The memory thief attempts to steal a memory from one creature they can see within 60 feet. The target must succeed on a DC 15 Constitution saving throw, or it temporarily loses one precious memory. The target has disadvantage on attack rolls, ability checks, or saving throws (memory thief's choice) until the end of its next turn. If the target is a spellcaster that fails the saving throw by 5 or more, it loses one random spell slot of 3rd level or lower until it finishes a long rest.

Immediately after a creature casts a spell that targets the memory thief or includes them in its area of effect, the memory thief can force the creature to make a DC 15 saving throw with its spellcasting ability modifier. On a failed save, the memory thief negates the spell's effects and steals the knowledge of the spell. The memory thief knows the spell and can cast it using the Stolen Spell action. The memory thief forgets the spell after they cast it or after 8 hours have passed. They can only retain one spell at a time using this ability. The target can't cast a stolen spells until it finishes a long rest.