For the purpose of this trick assume the Druid in question has been swallowed by a creature that has enough room in its gut for a Medium creature, but NOT for a Huge creature. Furthermore, the druid is experienced enough to wildshape into a Huge form.
I think y'all can see where this is going.
What happens when that wily old druid, that's been swallowed by some critter that's about as big as an elephant, BECOMES an elephant?
Does the wildshape not work? Is his size constrained? Or does he pull an Aliens-style exit on the poor swallower?
Is there an actual rule on this that I missed, or a Sage response?
Thankee!
I think y'all can see where this is going.

What happens when that wily old druid, that's been swallowed by some critter that's about as big as an elephant, BECOMES an elephant?
Does the wildshape not work? Is his size constrained? Or does he pull an Aliens-style exit on the poor swallower?
Is there an actual rule on this that I missed, or a Sage response?
Thankee!