What would happen if you cast Simulacrum on a shapechanger?

While there are many kinds of shapechangers in the D&D universe, such as vampires, lycanthropes (all of them), imps, doppelganger and channelings, there isn’t much said about how they interact with the Simulacrum spell.

The Simulacrum spell states:

You shape an illusory duplicate of one beast or humanoid that is within range for the entire casting time of the spell. The duplicate is a creature, partially real and formed from ice or snow, and it can take actions and otherwise be affected as a normal creature. It appears to be the same as the original, but it has half the creature’s hit point maximum and is formed without any equipment. Otherwise, the illusion uses all the statistics of the creature it duplicates, except that it is a construct. […]

Does this mean that a polymorphed being (be it from spell, curse or natural ability) would be copied in their current form? or would their "true form" immerge in the snow?

I can see this being quite useful either way:

  • Your party’s changeling studies and creates a persona of the king or an important person, then you create a simulacrum of the changeling king. Now you have 2 or 3 walking talking kings to create all sorts of chaos.
  • Though it would take 12 hours, if Simulacrum would reveal a true form, one could easily prove who is the real king by simulacruming one of the copies.

If I cast True Polymorph on my simulacrum and concentrate for the full duration, will casting Simulacrum again still destroy it?

Simulacrum states:

If you cast this spell again, any currently active duplicates you created with this spell are instantly destroyed.

Does this mean that if I take my simulacrum and permanently transform it using true polymorph into, say, a dragon, that if I cast simulacrum again, it would still instantly destroy that dragon I just produced?

If my Simulacrum possesses me via Magic Jar, to whom will my magic items attune?

I have a high level Arcana Cleric/Wizard, and using wish to create a simulacrum, I can have a body double. Since I also took magic jar, my copy knows it, too.

I wanted to know what would happen if I ordered the simulacrum to possess me. Specifically, if I am attuned to the following magic items, will my body double inherit my attunement and thus gain the items’ benefits?

  • Headband of Intellect
  • Robe of the Archmagi
  • Wand of the War Mage

Can a Simulacrum create magic items or research spells?

Can a Simulacrum or a homunculus research spells or create magic items while the player went out adventuring (assuming they had the materials and capabilities)?

The idea here is that our characters keep going from one adventure to the next with no downtime to use for spell research or item creation. So I thought: maybe the simulacrum or homunculus could do it?

Is the ‘copy’ from Simulacrum a humanoid or a construct?

In previous editions of D&D it was possible to have two base forms or (in some editions) a creature ‘template’. In 5e the base form is important and always singular: many spells &/or magics only work on specific creature type(s). The problem we encountered: can a Simulacrum be Reincarnated? You will note that the Simulacrum specifies that it can only be cast on humanoids and the spell claims it creates an exact duplicate. That said, this exact duplicate cannot accept healing &/or learning. What’s more, this replicant has only half the hit points.

With Reincarnation you will note that the recipient creature must be a humanoid. Previous editions were much more open to include many other living creatures but 5e is very specific. Thus, this spell will allow the reincarnation of exotic creatures such as Xvarts, half-dragon kobolds or even Nagpas – but not any beast, giant, or fae, regardless of how identical they are to humans. But i digress. The long and short of this: a construct will NOT be reincarnated. It is devoid of the life required to incarnate in the first place (in fact, it is odd that a construct is considered a ‘creature’ and not a ‘magic item’).

What is odd about D&D constructs, they are far more alive than most people. They heal after a short or long rest. The Simulacrum does not get this. Many a construct (or animated dead) does not suffer exhaustion – but a Simulacrum does.

Perhaps it would be wise to ask the gathered audience and jury to first see Edward Scissorhands and discuss if Johnny Depp has a soul or not. Does Winona Ryder ultimately regain her soul in Stranger Things or in Star Trek? I digress.

Truth is, the ‘Real World’ concept of Reincarnation would be poor source material as many faiths believe that all animals, insects and possibly even plants return in some justly-deserved shape. Does your dog have a soul? Does your cat have more of a soul than, say, Mike Bloomberg? How about the spirit-in-car-golem Herbie the Lovebug. Why not reincarnate this car… again?

Thus / the Question: does anyone know if the ‘creature’ created by the Simulacrum spell is considered a humanoid or a construct?

Edit: will modify and re-combobulate this draft as required by any reasonable suggestion. I apologize for the state of my mind, it is not your fault. Thanks for reading and putting up with my horrible editing abilities (or lack thereof).

Drawing from the Deck of Many Things with a Simulacrum


Can I use my Simulacrum to draw from a Deck of Many Things and if yes, what restrictions do apply?

Longer version

Imagine the following situation: You have gotten a Deck of Many Things and successfully identified it with an Arcana check, so you know what you got your hands on. Since you are aware how horrible the effects can be, you get a brilliant idea – at least you think so:

If I cast Simulacrum, let it draw from the deck and order it to give me whatever it got, I can draw from the deck without any risks!

It should be obvious that certain effects would not benefit neither you nor the simulacrum, e.g. the potential XP gains/losses, since you a) can’t transfer XP and b) your Simulacrum can’t gain XP.

I appreciate an RAI answer if there are areas that are not governed by strict RAW, but try to bend the rules only when necessary (or for a much greater fun factor).

Can a 17th level sorcerer kill all demons with Simulacrum and Wish?

Inspired by the answer to this question about sunbeams, I realized that there may be a way to exploit Simulacrum to do basically anything an infinite number of times.

Specifically, the course of action would be this:

  1. Be Xanar, a 17th sorcerer. At level 17 you chose Simulacrum as your new spell known, and used your per-level replacement to replace one of your previous spells with Wish. You also know Dispel Magic, and took the Magic Initiate feat to pick up Eldritch Blast.

  2. Cast Simulacrum on yourself, creating a simulacrum with all of your spell slots except the 7th level one. Give it a forked, metal rod worth at least 250 gp, attuned to the Abyss.

  3. Give your simulacrum the following command: “Cast Wish to create a simulacrum of the wizard Xanar. Then immediately repeat this entire command to the new simulacrum. After doing that, take the forked rod and us it to Plane Shift to a random location within the Abyss, dropping the forked rod before you leave. Then search for the nearest demon if there is one, and cast Eldritch Blast on it. Then, cast Dispel Magic on yourself, intentionally failing the saving throw.”

  4. Your simulacrum (henceforth Simulacrum A), acting on your turn, casts Wish using it’s 9th-level spell slot, creating another simulacrum of Xanar, who still has a 9th-level spell slot. This new simulacrum (henceforth simulacrum B), will thus also still have a 9th-level spell slot.

Note: We aren’t using Wish to cast Simulacrum using the “replicate a spell” feature, since that would require being in range of Xanar to cast it. Instead we use the second option to wish for the simulacrum to be made no matter how far away he is. This isn’t asking for much beyond the basic, and so should be a valid wish. This does incur the 33% chance to not be able to cast Wish ever again, but that’s for your simulacrums and thus doesn’t matter.

  1. Simulacrum A, following your order, repeats said order to simulacrum B as a free action.

  2. Simulacrum B, following the order of simulacrum A, and still acting on your turn, becomes the new simulacrum A and repeats steps 4-6.

At this point, since all newly created simulacrum act on the same turn, and all cast Wish on that turn, an infinite number of simulacra are created. On the next turn, those infinite simulacra continue to follow the rest of the order they were given, leading to:

  1. The first simulacrum uses the rod to cast Plane Shift, dropping the rod just before it leaves. The next simulacrum then takes it’s turn, picking up the rod (interaction), casting Plane Shift (action), and then dropping the rod as well before it leaves (free action). In this way, the rod travels along the infinite line of simulacra, allowing all of them to cast Plane Shift.

  2. Infinite simulacra of Xanar appear at every point in the Abyss, and cast an infinite number of Eldritch Blasts upon every demon there.

  3. Every demon takes an infinite amount of force damage, and dies.

  4. Every simulacra casts Dispel Magic on itself, and ceases to exist.

The important thing here is the difference between “arbitrarily large” and “infinite”. Most supposedly “infinite” tricks in DnD are really just arbitrarily large, which means that they can be repeated any number of times, perhaps even over a very short period of time, but ultimately they need to stop at some point. That number can be as big as you want, but it can’t be infinity.

This is important since the Abyss is both infinitely large and contains an infinite number of demons. Any spell which can simply kill an arbitrarily large number of demons would be insufficient, since no matter how many you kill, there would always be an infinite amount left.

Since this trick is recursive, however, and happens on one turn, it actually is infinite, and can therefore be used to kill all infinity demons. Since Eldritch Blast always hits on a 20, and no demon (that I could find) is immune to force damage, and there are potentially infinite Xanars ready to cast it on them, it doesn’t matter how hard any given demon is to hit or how many hit points they have or whatever.

Note that this all does assume that a wished-for simulacrum can take an action immediately, on the same turn that it was created. Otherwise, it would take an infinite amount of time to create the infinite simulacra, which would defeat the whole purpose. For the purposes of this discussion, we will assume that this holds true, though a DM could obviously rule otherwise.

Aside from that issue, do you guys see any flaws in this plan? Any improvements that could be made?