How does it work when the Deck of Many Things activates at once, but you draw Donjon?

Question

The deck of many things states

If you fail to draw the chosen number, the remaining number of cards fly from the deck on their own and take effect all at once.

For example: You declare that you will draw 3 cards
You draw your first and say its something good.
You then fail to draw your next one in an hour and the whole deck unleashes on you.

How does that "whole deck unleashes at once" feature work with the Donjon and the Void card(s)?

Does it just trigger last or would you be able to use one of the other cards to wish yourself out of the Donjon (or Void), or drawing finished anything altogether, since it states the whole deck unleashes "all at once?"

The Void and the Donjon cards (where you are trapped and the result is that "you draw no more cards"), if drawn before you've drawn the full number of cards, would seem to trigger the "all at once" result once the hour is up.

Answer 1

You should only get as many cards as you declare - three

The character being removed from the deck's presence opens up some some cause and effect chains, but it is the two remaining cards (not yet drawn) that erupt after the hour, not "the whole deck unleashes at once" as stated in the question's text.

Three cards should get drawn, but the last two may not be usable

If you fail to draw the chosen number, the remaining number of cards fly from the deck on their own and take effect all at once.

If you declare three, and you only draw one, then after an hour the other two cards come out of the deck and take effect immediately. The text does not specifically state "the whole deck," so this reading of that description makes the most sense to me.

That doesn't completely solve the conundrum. The DM will need to make a ruling on which card takes effect first, but the description suggests that you aren't drawing the cards at this point: they are being drawn for you by the magic of the deck. Let's call that "autodraw."

The above 'draw no more cards' lacks a card drawing character, but it leads to some other "how does this work?" questions for the DM to resolve.

Example based on your scenario:

First card: Jester (yay, XP for you)
Fail to draw, so one hour later ...
Second Card (autodraw): Donjon (you are trapped!)
Third Card (autodraw): The Fates (you can undo Donjon¹, lucky you)
or
Third Card: Balance (you are trapped and you change alignment).
or
Third Card: Knight (The DM may rule that he appears wherever you are trapped, so maybe he can help you get out¹, but he may appear where the deck is and where you are not).

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¹ What suspended animation means, for this result, isn't explicitly spelled out

Donjon. You disappear and become entombed in a state of suspended animation in an extra-dimensional sphere.

We can get an idea from the Astral Projection spell description (PHB, p. 215):

... the material body you leave behind is unconscious and in a state of suspended animation; it doesn’t need food or air and doesn’t age.

The Sequester spell description (PHB, p. 74) says for suspended animation ...

"Time ceases to flow for it{what's being protected by the spell} and it doesn't grow older."

It appears that you'd be awake, and maybe able to communicate with that Knight, but the DM may rule otherwise. (For example, the DM may rule that the Knight pops into existence where you are as you pop into that other place).

Which spell description's sense applies? DM ruling needed here.

Answer 2

The number remaining is the number of cards you declared you would draw, not the whole deck. That aside, I'll continue with exactly what the rules say, and don't say. You the draw the first card, whatever it is, it happens. Then the other cards get automagially pulled an hour later. One of them is Donjon. Donjon reads:

Donjon. You disappear and become entombed in a state of suspended animation in an extra-dimensional sphere. Everything you were wearing and carrying stays behind in the space you occupied when you disappeared.

So, you disappear. leaving behind all your gear and the deck. Whatever else also happens, but it happens at the same time, meaning in the same instant. Moreover, Suspended animation means literally motion stopped (all movement, heart beat, etc. is stopped). So, gaining a wish or weapon or whatever might still happen, but you are unable to use them until you are no longer in suspended animation. Weather you are awake or not is unclear; but I'd personally rule that you are aware of the passage of time and the nothingness around you (because how awesomely cool and uncool would that be if your character is there for an extended period of time), but you do not age as there is no cellular movement.

If it is an item or creature that appears, it gets left behind. Perhaps it could be used by others to help get out, but you can't use it in that instant.

If it is a wish, you have it but you cannot use it. The wish spell clearly states that "By simply speaking aloud you can alter the very foundations of reality..." -- thus it has to be spoken which you cannot do in suspended animation.