Encillia's Overwrite Personality

You attempt to reshape another creature's memories. One creature that you can see must make a Wisdom saving throw. If you are fighting the creature, it has advantage on the saving throw. On a failed save, the target becomes charmed by you for the duration. The charmed target is incapacitated and unaware of its surroundings, though it can still hear you. If it takes any damage or is targeted by another spell, this spell ends, and the target's personality is unchanged.

If this charm lasts its full duration, you overwrite the personality of the creature, deleting or adding habits, memories, desires, loyalties, knowledge. You can also change the creatures temperament and alignment. You can even go as far as to completely void the creature's personality and leave them blank, or transfer a precise copy of yourself into them. This spell does not, however, let you read the creature's mind, and so you can not remove habits, memories, desires, loyalties, or knowledge you are not aware of unless you choose to void that type entirely. You also can not give the target knowledge you yourself do not know, but you can implant false memories.

A remove curse or greater restoration spell cast on the target with a 9th level spell slot can end this effect, but only if the target is willing or incapacitated