Return to Answer

The interior of the bag is an extradimensional space. That means there is nothing on the other side of the interior of the bag. So there is nowhere to go to for the will-o'wisp, once it is in the bag, other than maybe the lid, even though it could move through walls. Can it get back out through the lid?

The interior of the bag is an extradimensional space. That means there is no other side of the interior of the bag. So there is nowhere to go to for the will-o'wisp, once it is in the bag, other than maybe the lid, even though it could move through walls. Can it get back out through the lid?

In summary: you can finagle the will-o'-wisp into the bag, but wether you can keep it in there, or wether it can escape or destroy the bag from the inside will be up to your DM. Either of the two would make the effort a bad idea in most circumstances.

The overwhelming consensus is that you cannot open a bag of holding from the inside. Even though the will-o'-wisp can fly, and is incorporeal so it could move through the lid without opening it, the answer's interpreation of the sentence quoted above is that the only way to get something out of the bag is to retrieve it.

In addition, the will-o'-wisp has no attack that would allow it to pierce or tear the bag, it can only shock it with its shock attack. So rules as written it cannot destroy the bag from the inside, even if that is generally possible, and it again would be a DM call if burning a hole with electicity would work to rupture the bag, as this upvoted answer postulates. If it would, the will-o'wisp could escape to the astral plane, destroying your bag and getting rid of all your stuff while doing so.

In summary: you can finagle the will-o'-wisp into the bag, but whether you can keep it in there, or whether it can escape or destroy the bag from the inside will be up to your DM. Either of the two would make the effort a bad idea in most circumstances.

The overwhelming consensus is that you cannot open a bag of holding from the inside. Even though the will-o'-wisp can fly, and is incorporeal so it could move through the lid without opening it, the answer's interpretation of the sentence quoted above is that the only way to get something out of the bag is to retrieve it.

In addition, the will-o'-wisp has no attack that would allow it to pierce or tear the bag, it can only shock it with its shock attack. So rules as written it cannot destroy the bag from the inside, even if that is generally possible, and it again would be a DM call if burning a hole with electricity would work to rupture the bag, as this upvoted answer postulates. If it would, the will-o'wisp could escape to the astral plane, destroying your bag and getting rid of all your stuff while doing so.

You could rule that the inside is an extradimensional space and it does not work, but earlier editions of D&D allowed destroying it from the inside. So that again is up to the DM.

You could rule that because the inside is an extradimensional space this does not work, but earlier editions of D&D allowed destroying it from the inside. So that again is up to the DM.