So glad to see this new update. Although it's a shame that the main page cannot play the current version.
Gotta admit, Kelemana is a very weak boss to use against the Hero. Especially true since Vaal gets such great synergy with the gas rooms. I think the various servants you put in should each get 1 trap type they're good with, so that they will be more successful if you "learn" them.
Vaal already has the gas rooms. Kelemana could "grow hungry" with the flame rooms "cooking" the hero. Melvii seems to be a Jack of All Traps (which is fine). I know I suggested a counterpart to Vaal who would use her massive breasts to charm the Hero, and she would be perfect for working with the pitfall trap because it sends the Hero right into her cleavage.