Thank you for your review! 😄
I sort of foresaw people wanting one side to win! It is somewhat balanced by the fact that more enemies spawn after the switch, if you do not spawn any yourself. I feel like the framing might make people more likely to take the cute witches side, rather than the monsters. Maybe a more symmetric framing would have worked better - I just wanted to add my cute witch character to the game! 😄
I will definitely take a look into adding some sort of incentive, such as power-ups, to motivate players to place enemies, which they then have to fight.