Really nice presentation. The channel system is pretty unique. It would've been nice to see a few more skills to make the combat a little more engaging, as it was I largely just focused on keeping the enemy team on the same channel as the hypnotist and spamming hypnotise - although I understand the limited skill selection was probably just a product of this being a game jam.
Nice work either way! I'll be interested to see if and how you build on the concept in future.