Originally Posted by
skim172
I wouldn't say the gates were some sort of test. But I could see this idea work in the premise of "This is what they believed would form the strongest defense". Dorukan believed in magic, Lirian believed in nature, Soon believed in honor, Girard believed in deception - and they built their defenses based on what they believed. Not because they were testing anyone, but simply because they believed this was what made the most sense.
So I could see the argument that Serini believed teamwork and diversity of approaches was the strongest of all, and constructed a dungeon defended upon that basis.