Questions about two items (Planar Runeplates, Null-Space Chamber)


Rules Questions


Hi all.

I hope you fellow forum members can help me understand better this two items.

Planar Runeplates: after reading the description, I'm not sure if the plates are supposed to give their benefits against creatures that have an alignment subtype opposed to the plates' alignment, or against creatures that simply have some part of their alignment opposed to the plates.

So for example, in the first case if you have Chaotic Good plates, you can use them against demons, wich have the evil subtype (opposes good) but not against a chaotic evil goblin (doesn't have alignment subtype).

The full description:

Cultists and religious artificers forge planar runeplates, as do the demon-worshipping drow of Apostae. Each set of planar runeplates is dedicated to a specific powerful being native to the Outer Planes, such as an archdevil, a demon lord, or a god. Devotional symbols on the plates might convince others you’re aligned with the being in question, even if you’re not. You wear the plates by affixing them to clothing or armor; they count as a worn magic item unless you install them in armor, taking up a number of upgrade slots equal to their mark.

Each set of planar runeplates has the same alignment as the extraplanar entity to which the plates are dedicated, although no plates are created with a neutral alignment with no other alignment components. While you wear the plates, they have several effects. If a creature with an alignment component opposite any of the plates’ alignment components attacks you, the plates alert you to the creature’s opposing subtypes. If the attack hits, as a reaction you can force the creature to reroll the attack and use the worse result. If you fail a saving throw against an effect created by such a creature, as a reaction you can reroll the saving throw and take the better result. Once you benefit from a given set of planar runeplates, you can benefit from a different set only after 24 hours have passed.

Null-Space Chamber:

The mk 1 type has this description: You can close up to 25 bulk in this device’s pocket space, a 3-foot cube. It can hold enough air for one Medium creature or two Small creatures for 10 minutes.

I honestly don't know how to calculate how much bulk a character or creature is worth (aside from what they are carrying), so basically I can't determine if a specific medium or small creature can fit inside the chamber when it already has some of those 25 bulk occupied by items and such. Is there any way to do this?

Thanks!


I hadn't noticed the first time I read them, but I do think you're limited to creatures with opposing subtypes, so generally outsiders. It fits with the planar runeplate name. The first alignment reference seems designed to prevent them working against the rare outsider who has changed their alignment. So a N demon would no longer be CE in alignment, but would still have the chaotic and evil subtypes. But the first trigger condition wouldn't happen because it's N now.

The rule of thumb is 10 bulk per pound, although people should probably be less bulk than that to allow things like fireman carry of big allies. But a 10 pound to 1 bulk conversion is a conserative way to handle this, allowing some heftier PCs to squeeze in a bit more generously would seem ok to me personally.

Dark Archive

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So far as the Null-Space Chamber goes, one of the recent AP volumes (AtAT: Escape from the Prison Moon p. 33) used this as a rule of thumb...

"Treat medium prisoners as having a bulk of 16 and large creatures as having a bulk of 24."

Based on that math, I'd guess that a small entity would be treated as having a bulk of 8.


Thanks for the replies.

I have the Escape from the Prison Moon module but forgot about the bulk rule regarding creatures.

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