Zannah can handle Revan with her immensely powerful TK and sorcery attacks. His mental defense that overcame Malachor and the Star Forge, and then battled Vitiate and the Dread Masters for 300 years can't compete. He has a lot of demons. Kas'im vs Luke is an interesting battle, but Kas'im is regarded as the greatest lightsaber duelist in history, morso than the likes of Tulak Hord who slaughtered a thousand Jedi in single-combat. He also tanked Darth Bane's attack that destroyed a thousand meter tall temple, so he should be able to handle anything Luke throws at him Force-wise. Ultimately, I don't see how Team 2 is going to take a majority - especially given the circumstances in Round 2.
Is this a joke? Luke is powerful enough on his own to handle them both, and with Revan there it would be a slaughter fest. Round 2 bonus would make almost no difference, especially if Luke pulls Oneness. Revans mental defense is just too much for Zannah to pull anything on him, and while Kas'im is an insane dualist, I doubt he'd have a chance at even throwing his saber at either of them.