Simulacrum

7th-Level Illusion
Casting Time: 12 hours
Range: Touch
Components: VSM($) (snow or ice in quantities sufficient to made a life-size copy of the duplicated creature; some hair, fingernail clippings, or other piece of that creature's body placed inside the snow or ice; and powdered ruby worth 1,500 gp, sprinkled over the duplicate and consumed by the spell)
Duration: Until dispelled

Target. One creature that is within 10 feet of you for the entire casting of the spell.
Effect. The pile of snow becomes a simulacrum of the creature, which is also a creature. It uses the game statistics of the original creature at the time of casting, except it is a Construct, it's Hit Point Maximum is half as much, and it can't cast simulacrum. The simulacrum is Friendly to you and creatures you designate. It obeys your commands and acts on your turn in combat. The simulacrum can't learn, form long-term memories, or gain levels, and it can't take Short or Long Rests. If the simulacrum takes damage, the only way to restore its Hit Points is to repair it as you take a Long Rest, during which you expend components worth 100 gp per Hit Point restored. The simulacrum must stay within 5 feet of you for the repair. The simulacrum lasts until it drops to 0 Hit Points, at which point it reverts to snow and melts away. If you cast this spell again, any simulacrum you created with this spell is instantly destroyed.
Synchronize. By spending a minute in communion with the simulacrum and the original target while they are within 10 feet of you, you can synchronize the memories and experiences of the original target and the simulacrum. Any events the simulacrum remembers are shared with the original target as if they happened to them, and your simulacrum's own knowledge is updated with the target's knowledge and long-term memories, as if you had just created it again. This does not change any of the simulacrums statistics; if the target has learned new skills or abilities, you must create a new simulacrum in order for it to obtain them as well.
At Higher Levels. You may create one additional simulacrum for each slot level above 7th. You must present the material components for each individual simulacrum, and all simulacra created by this spell divide the hit points, mana, and features that would normally be copied by the singular simulacrum evenly. All simulacra created by this spell are still destroyed if you cast this spell again.

Source: PHB 2024 317, SRD

Changelog