Suppose I wanted to repair a simulacrum.

Am I able to cast magnificent mansion and furnish it such that the materials required to repair the simulacrum are inside the mansion, thus circumventing the cost of repairing the simulacrum?

Magnificent mansion is worded as follows:

You can create any floor plan you like, but the space can't exceed 50 cubes, each cube being 10 feet on each side. The place is furnished and decorated as you choose.

Simulacrum repairs are worded as follows:

If the simulacrum is damaged, you can repair it in an alchemical laboratory, using rare herbs and minerals worth 100 gp per hit point it regains.

I would like to:

  • Have a greenhouse in the mansion furnished with the rare herbs that I require,
  • Have a small mine or mineral vein in the mansion furnished with the rare minerals that I require,
  • Have a tool closet in the mansion furnished with the tools that I would need to harvest the aforementioned rare materials, and
  • Have some sort of workshop/alchemical laboratory that I can use to perform the repairs?

As a follow-up question, suppose I wanted to cast a spell with expensive material components such as gate, which requires a diamond worth 5,000 gp. Is the mansion able to be created with the diamond already inside so that the caster can simply cast magnificent mansion, go inside and then cast gate or whatever expensive spell I want?


No, not if it’s Read in English (RiE)

FURNISH — fur·nish /ˈfərniSH/ verb provide (a house or room) with furniture and fittings.

It has functioning furniture, dresser, armoire, butchers, beds, etc...

DECORATE — dec·o·rate /ˈdekəˌrāt/ verb make (something) look more attractive by adding extra items or images to it.

Paintings, vases, sculptures, etc..

So by these English definitions, you aren’t making a mine shaft with valuable ore nor greenhouse with rare herbs.

The intent is a safe haven with food, water and accommodations suitable for basic living needs. In addition to that, you can make it luxurious with extra decorations.

Furnishings and other objects created by this spell dissipate into smoke if removed from the mansion.

Per the spell, anything created inside via spell, disappears leaving mansion.

Unlike the rod of security, any specialized room won’t benefit you more than 24 hour period anyways.

As always, subject to change with your DM. :)

  • 1
    \$\begingroup\$ I assume by "Not following RIE" you mean "No/it can't, if you're following RIE"? (The phrasing of "RIE" seems a bit weird - is it meant to parallel phrases like "RAW"?) \$\endgroup\$ – V2Blast Nov 3 '18 at 17:52
  • \$\begingroup\$ Sorry, but yeah. I’ll edit. I don’t think it’s used as RIE, but acronyms are fun. \$\endgroup\$ – XAQT78 Nov 4 '18 at 0:49

Yes, (kind of)

  • Rare herbs: asks for plant decoration
  • Rare minerals: asks for furnitures made from the rare minerals (if possible)
  • Tools: asks for a closet full of the required tools. You can also furnish the mansion as a laboratory

Herbs and mineral veins are not furnitures, so you can't use "furnished" to create the materials.

You also can make a decoration made of diamond or other gem(s).


I don't think this is the intent of the spell. I'd be very careful to allow this as a DM. Maybe for the first casting of the spell, sure, but not the subsequent casting. As a player, consult your DM, as this is not explicitly stated as allowed, or not allowed.


It's not quite RAW, however I guess the problem is the sentence

Furnishings and other objects created by this spell dissipate into smoke if removed from the mansion.

in the description of Magnificent Mansion. The main question would be how exactly a repair is done. If I just use conjured tools, say for example hammering out dents in an armor, a repair should stay. If I use conjured materials, for example replacing broken plates in an armor with conjured new ones, the repair will vanish on exit.

Now the description of Simulacrum doesn't tell us which is the case, however I would argue that the repairs will indeed be gone when the simulacrum leaves the mansion, since herbs and minerals sound much more like materials then tools.


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