I was looking at Mordenkainen's Tome of Foes and noticed for the Nightwalker info that it said "The plane sucks the life and soul from such audacious [living] creatures" and "Those few who survive do so by sheer luck or by harnessing some rare form of magic".

What kind of magic would that be? Abjuration? Magically-enhanced healing? Immunity to Necrotic damage?

  • \$\begingroup\$ related: How can the positive/negative planes be described? \$\endgroup\$ Commented Jan 28, 2022 at 18:12
  • \$\begingroup\$ Back in 2E, there was a third level Priest spell called Negative Plane Protection, but ironically, it was completely useless for surviving on the Negative Energy plane (it couldn't even be cast there; it was really a spell for protecting against a single energy drain attack, which were powered by a connection to the plane, not protection from the raw plane itself). Mostly posting so people don't think it might be an answer based on the name, when it wasn't an answer even back then. \$\endgroup\$ Commented Jan 28, 2022 at 21:38
  • \$\begingroup\$ Yeah 3.5e had a spell that actually did protect you from planar insta-death, but I don't think any version of it has been recreated yet. Maybe someone with more system expertise could correct me, there. \$\endgroup\$ Commented Jan 28, 2022 at 21:45

3 Answers 3


It's a McGuffin

Just as there is no listed rule for exactly what the negative energy plane does to living creatures, the "some rare form of magic" means you as the DM will make up something that fits with your campaign that allows the party to visit the Negative Energy Plane without instantly dying (or, alternatively, you can choose not to do so, making the plane functionally inaccessible).

As an example, in the Exploring Eberron book*, the plane of Mabar (which is a sort of setting-specific mashup of the Shadowfell and Negative Energy Plane) deals 10d6 necrotic damage every minute to any living creature, and if you hit zero HP, you crumble into dust. The rules for this specifically call out that death ward and resistance or immunity to necrotic damage will nullify the effect.

That's not the Negative Energy Plane as such, but it's an example of what you could decide to implement in your game. The defenses could be as simple as those -- making the plane accessible (at least for a short time) using just a few specific spells or items -- or it could be an ancient spell found on a stone slab deep in a mummy's tomb, a magic item that creates a bubble of life energy, or magitech space suits. You decide what makes sense for your game.

That text is basically the game designers lighting up a big neon sign that says PLOT HOOK GOES HERE.

*Exploring Eberron is admittedly a DM's Guild book, but it was written by Keith Baker, the original creator of the Eberron setting. While it isn't "canon" (whatever that means in D&D), it's probably the best insight we have into what the setting is intended to be like in the areas not covered extensively by the main book.

  • 1
    \$\begingroup\$ See also the "rare magic" required to end a mummy's curse (or the similarly flavortastic "immortal curse" of the medusa), related. I do appreciate when the rules leave an opening for a good plot device, instead of flat out saying that something's not possible. \$\endgroup\$
    – A C
    Commented Jan 29, 2022 at 8:25

True Polymorph

Using true polymorph to transform into a native creature should allow you to survive on the Negative Energy Plane. As a 9th level spell, this would potentially qualify as a "rare form of magic".

According to the spell description, "if you concentrate on this spell for the full duration, the spell lasts until it is dispelled", so the ability to survive would last longer than the hour spell duration.

Fifth edition doesn't seem to have information on what creatures are native to the plane, but nothing in 5e indicates that creatures previously mentioned as native should no longer be.

According to the 3e Manual of the Planes (p.82), certain undead are able to exist on the Negative Energy Plane, including Spectres, Wights, and Wraiths.

Both the 1e (p. 54) and 3e (p. 82 and p. 168) Manual of the Planes mention the Xeg-yi as inhabitants.

Polymorphing into one of these creatures should grant whatever is needed survive.

  • \$\begingroup\$ The Nightwalkers mentioned in the question seem to be from the negative plane \$\endgroup\$ Commented Jan 29, 2022 at 15:48
  • \$\begingroup\$ Huh, I never thought of that... \$\endgroup\$
    – Rp_Master
    Commented Jan 31, 2022 at 13:48

Otiluke's Resilient Sphere

Nothing—not physical objects, energy, or other spell effects—can pass through the barrier, in or out, though a creature in the sphere can breathe there. The sphere is immune to all damage, and a creature or object inside can’t be damaged by attacks or effects originating from outside, nor can a creature inside the sphere damage anything outside it.

Based on the highlighted sections, as a DM, I would rule that the resilient sphere protects one character from the effects of the Negative Energy Plane.

But it also only lasts one minute. So better move quick and have multiple castings ready.

Of course your DM could also rule that the NEP has the same effect as disintegrate, and destroys the sphere. So better to test it first.

  • \$\begingroup\$ "Effects originating from outside" seems an arguable point when the actual makeup of the plane itself, at its most fundamental level, in inimical to life. I suppose you could cast it first, then plane shift there (cue argument over whether the spell translates across planar boundaries, and how it handles the "essence" of the plane trapped, or not trapped, inside the sphere originally), but it's almost certainly useless once you're there. \$\endgroup\$ Commented Jan 29, 2022 at 17:12
  • \$\begingroup\$ And just like that our trip to the Negative Energy Plane becomes a level of Super Monkey Ball. \$\endgroup\$ Commented Jan 30, 2022 at 2:05
  • \$\begingroup\$ @DarthPseudonym well, if your quest is to collect Negative Energy bananas for a vegan lich... \$\endgroup\$ Commented Jan 30, 2022 at 3:44

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