What ways can you survive a Bag of Holding Bomb (i.e. two extra-dimensional spaces put into each other causing everyone within 10 feet to be sucked to the Astral Plane)? I will first acknowledge the fact it is generally agreed the travel itself does not cause death.
I will note the key wording of the Bag of Holding Bomb:
…opens a gate to the Astral Plane … Any creature within 10 feet of the gate is sucked through it to a random Location on the Astral Plane. The gate then closes. The gate is one-way only and can't be reopened.
Then, of course, you are now in the very dangerous Astral Plane with whatever creature you were trying to defeat. Not ideal.
Are there any reliable strategies to either escape or not get sucked in the first place (that don't involve finding a colour pool for the Material Plane or being a level 15+ caster and having Plane Shift/Wish/etc)?
Best Answer
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 dimensional travel
Cast hallow and bind an extra effect to it. The extra effect is "Extradimensional Interference: Affected creatures can’t move or travel using teleportation or by extradimensional or interplanar means." Make this extra effect apply to you and not your opponent.
Banish yourself home
The banishment spell says:
This fourth-level spell is available to several classes including cleric and wizard (but, sadly, not druid or bard). If you have it available (including as a scroll), you can banish yourself home.