I beat him! I love me some good old fashioned turned based boss battles - impressive you built a system for a game jam! It was interesting how I didn't know who I'd get every time and it would change my strategy, and how my focus was on weakening him when I could. I think you could add more feedback ('juice') - I'd love to see characters flash or shake when attacking or being attacked, animations, sound effects etc. Sometimes I didn't know exactly what was happening and it would help communicate that, and take an already strong idea up a level. Great job!