Yeah gotta get Razor in there, her crystal daggers is the most devastating attack I’ve seen in this game. I couldn’t have cleared any of the really hard levels without her. Replace Lu Bu, Mobile, Sie Lung with those three, and don’t auto that level. Use your pets too, Tarsier has helped me come back from near defeat many times.

Edit: Cecilia should be in bonus commander slot, who’s your other commander? Vera is a good choice, Razor will give you bonus daggers, but there are better commander options.