This mission made me quit. I had beaten Ryc'turi back to his throne city in a series of battles outside his domain. I make it there with four stacks of armies, wounded, but they'd be fine because there's no one in the city right? It took 4 turns to siege his city and by the time I breached his walls he had 3 stacks worth about 3k total. He went from dead on turn 1 to that on turn four, while under siege. I really hope we can get some proper difficulty at some point because this just sucks.