[X] A dragon spreads its wings for a second time in Gnitaheath
You tell me "Hey, hey, Alectai, why are you voting for this? Eitr is scary!"
Yes, it's fucking nightmarishly awful, it is--in fact, The Worst.
But It's a Known Peril. It's not a "No Save Just Die when he's looking at you" option. Or "Just die if you spend any time in melee with this guy."
It's a known Peril that we can account for in our strategizing. The other two are largely Unknown Unknowns, in the sense that "We know Grendel and Mama Grendel are immune to weapons", and the other is a literal wizard king.
I would much rather fight a superbeast with a horribly awful breath weapon that can Seriously Fuck Us Up if we treat it lightly, than try to open up Mystery Boxes.