49
votes
Accepted
What are the ramifications of creating a homebrew world without an Astral Plane?
Only the following elements in the core rulebooks use the Astral Plane
While it's impossible to list every possible Astral Plane interaction in D&D, the list of things in the three core rulebooks ...
31
votes
Accepted
What are all the ways a player can get to the Astral Plane?
Ways to get to the Astral Plane specifically:
Wild Magic Sorcerer's Wild Magic Surge
Astral Projection spell
Robe of Stars item
Placing an item that creates an extradimensional space inside another ...
27
votes
Accepted
Does Adamantine Armor protect your silver cord on the Astral Plane?
Yes, adamantine armor protects from the critical hits of a githyanki sword.
You quoted the relevant rules: wearing an adamantine armor transforms any critical hit in a mundane hit, hence a githyanki ...
25
votes
Accepted
Surviving Bag of Holding Bomb
Activate the bomb while you're more than ten feet away
For example, using a Mage Hand to activate it, or your familiar, or the "Arrow of Total Destruction".
Make yourself unable to ...
24
votes
Can you avoid the stress penalty of Wish by using Astral Projection?
You suffer the stress as normal
The astral projection effect specifically applies to things that affect "your astral form" and "your physical body":
Any damage or other effects ...
21
votes
Surviving Bag of Holding Bomb
Echo Knight Shenanigans
Technically the Echo Knight's Echo is not a creature. This is stated obtusely in its description (and has been argued before on hundred topics):
This echo is a magical, ...
19
votes
What are all the ways a player can get to the Astral Plane?
Miniman's answer addresses the varied player-facing methods present in the game. This answer will thus constrain itself to DM-facing methods (i.e. methods that are the purview of cosmological ...
18
votes
Accepted
What happens if an elemental is transported to the Astral Plane?
Not by RAW
Monte Cook's A Guide to the Astral Plane was written for AD&D, which is quite far from 5e.
The 5e DMG entry (46-48) for the Astral Plane says nothing about elementals, negative or ...
18
votes
Does a Quiver of Ehlonna create a gate to the Astral Plane?
It will open a gate.
The key language is "similar."
The referenced description states:
Placing the haversack inside an extradimensional space created by a bag of holding, portable hole, or ...
17
votes
What are Astral Diamonds made of?
To my knowledge:
Astral diamonds existed exclusively in 4E (it's definitely the only edition where they're a standardized unit of currency). I've seen people claim to remember them existing prior to ...
16
votes
Accepted
Can creatures from the Material Plane survive being sucked into the Astral Plane?
Though the PC's in the situation described won’t die straight away, the astral plane is a very dangerous place. I would refer to the DMG on pg: 47
A character who travels bodily to the Astral
...
14
votes
Accepted
What happens when you put a bag of devouring inside of a bag of holding?
A Bag of Devouring is "a feeding orifice for a gigantic extradimensional creature", so what's inside it is still an extradimensional space, and should interact with a Bag of Holding the same as any ...
14
votes
How can an astral traveller's silver cord be severed? How difficult is it?
An astral traveler's silver cord is a difficult target
Manual of the Planes on Silver Cord says
Severing the silver cord that connects the form to the main body kills an astral traveler’s normal ...
14
votes
Accepted
Can someone using "Astral Projection" gather materials scattered through the Astral Plane?
They go on a quest
You can physically travel to the Astral with Plane Shift (or Gate, but Plane Shift is lower level and on more spell lists). If you know exactly where the item is, Plane Shift can ...
13
votes
Accepted
What does the Astral Sea look like?
If the astral plane is a "sea," you are a fish
There is a description of the astral plane in the Dungeon Masters Guide (p. 46-47, bold added). There, it states:
The Astral Plane is the realm of ...
13
votes
Accepted
Does a githyanki's silver sword instantly kill an astral traveler on a critical hit?
Yes, a githyanki will kill an astrally projected creature on a critical hit (which occurs 5% of the time for each non (dis)advantaged attack).
However, since they can't kill you at all if they don't ...
13
votes
Accepted
Traveling through the Astral Plane
You enter the new plane whole
From the spell description:
Your astral form can freely travel through the Astral Plane and can
pass through portals there leading to any other plane. If you enter a
new ...
13
votes
Accepted
Which Planes Border the Astral Plane in the Great Wheel Cosmology?
The default 5E cosmology is unclear on some of the connections. I'll give the best answers I can give here on how the Astral borders other planes in the default cosmology:
The prime Material Plane (...
12
votes
Accepted
Does a wizard pass through the Astral Plane when teleporting?
In D&D 3.5 this was true, as the quote below shows. In D&D 5e nothing in the rules makes it necessary to travel through the astral plane to teleport. Magic has changed. (Plenty of things ...
11
votes
Can a Rope Trick Spell Scroll and a Bag of Holding open up the gate to the Astral Plane?
Regardless of how the rope trick spell is cast, a portal to the Astral Plane will not appear when a Bag of Holding enters the extradimensional space
The Bag of Holding states:
Placing a bag of ...
11
votes
Accepted
Will loot you find on the Astral Plane while using the Astral Projection spell remain in your possession when the spell ends?
No, you can't take things back from the Astral Plane, because you don't physically go there; your consciousness does.
The description of the Astral Plane in the DMG states (p. 46; emphasis mine):
The ...
11
votes
Accepted
Would a store or shop exist in the ethereal plane in 5e?
There's nothing mechanical that prevents this. Page 48 of the DMG has details about both the Border Ethereal and Deep Ethereal, which are places you can travel through. And according to the ...
10
votes
Does a wizard pass through the Astral Plane when teleporting?
Characters do not travel through the Astral Plane when teleporting.
From the PHB
You teleport yourself from your current location to any other spot within range. You arrive at exactly the spot ...
10
votes
Accepted
Can a Bag of Holding be used with Astral Projection to move items to or from the Astral Plane?
This is up to the DM.
The spell description simply does not give us a clear idea of the relationship between your real possessions and those possessions you have while under astral projection. Your ...
10
votes
Surviving Bag of Holding Bomb
Word of Recall
While I think that for practical purposes Banishment is the best option, as it is lower level and is a generally useful spell to prepare even without this application, Word of Recall ...
9
votes
What are the ramifications of creating a homebrew world without an Astral Plane?
It's impossible to cover every scenario
You are trying to create a homebrew universe, which is awesome. I wouldn't worry too much about trying to cover all your bases but just deal with issues as they ...
9
votes
Accepted
Sightseeing in the Astral Plane
Remember that the Astral plane is the major highway between the prime material plane and each outer plane - literally anything could be using that highway: prime material dwellers, Angels, Devils, ...
9
votes
What books deal with gith (any variety) and the Astral Plane?
You're fortunate in that Githyanki lore has remained remarkably consistent across the various editions. Even their 4e lore, which shifted them to an entirely new cosmology, preserved their lore in ...
9
votes
Can you avoid the stress penalty of Wish by using Astral Projection?
Per a comment above, I don't think a tight letter-of-the-rules analysis approach is going to work very well-- I just don't think the various rules and spell descriptions are written well enough or ...
9
votes
If a character's body is affected by the Forbiddance or Private Sanctum spells, would it prevent the Astral Projection spell from working?
You cannot use Astral Spell from an area that blocks planar travel
Private Sanctum states as one of the options which I assume you chose (otherwise there is no question about it, nothing would be ...
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