Sorry it took so long to reply, I forgot my password. Yes, I can use guard, but one of four things usually happens: I get immensely unlucky and the mushrooms focus down Clara out of sheer randomness, Pro/Clara decides to punch themselves in the face from confusion, a mushroom decides to use double attack and one shots someone, or, in the best case scenario, I use confusion and repeated accusations to to get two to kill each other while they do minimal damage outside of double attack, have one party member die before the I kill the last mushroom, and then… game over.