#1. GNA
This is the absolute ultimate test in all of God of War Ragnarok, even more so than King Hrolf. After replacing Freya as the Queen of the Valkyries, Gna is a foe that you encounter a couple of times during God of War Ragnarok’s main story- though the proper boss fight against her doesn’t come until the post-game. In fact, you should very much save this fight until the very, very end, when you have nothing else in the game to do, because defeating her will take everything you’ve got. Her health bar isn’t as massive as King Hrolf’s, but her roster of attacks is not only huge, it’s also full of moves that can be absolutely deadly if you don’t properly deal with them. If you’re looking for a proper challenge, this fight is an absolute treat.
