Originally Posted by
donfilibuster
Think wizard king, at level you are supposed to be prepared against mummies, lich and a long run.
To this end the quest have four shrines that can be reused on normal.
But chances are you took the time to get undead beaters and bring a firewaller, so it's a piece of cake.
Conversely, chains of flame has no easy button, people get lost on the way to the shrine, and gnolls and efreet are only weak to cold, cutting on the usefulness of the firewall.
It is clearly intended, your firewall works well in one but not in the other.