The most challenging campaign.

Inferno is decent, but the worst is the Refugees mission for the Elves (mission 1), it has a lot of bugs. I killed Biara at the border before Faidaen appeared, and then they gave me a quest to eliminate her – who was I supposed to eliminate? I had to replay.

But Refugees is my favorite mission... There are many opportunities to level up your hero: three huts with skills, a lot of "parameter boosters" on the map, and even a mage vault – I learned Resurrection there and, thanks to that, I completed the Emerald mission without any problems.