A great answer, thank you. A hall of nitrogen horrors does seem like a perfect entrance to a lich’s underground castle. Perhaps an ‘isekaid’ lich from our world would do exactly that (reminds me of Nazarick). Or a different but very similar element could be less violent in the way it affects living beings but still dangerous for a 1h+ descent. Interesting!
A great answer, thank you. A hall of nitrogen horrors does seem like a perfect entrance to a lich’s underground castle. Perhaps an ‘isekaid’ lich from our world would do exactly that (reminds me of Nazarick). Or a different but very similar element could be less violent in the way it affects living beings but still dangerous for a 1h+ descent. Interesting!