Did you use interceptor's wish? That allows you to use your team instead of Erin's. Do you have any other fire types? Talonflame is not really useful in this fight and magmortar is way better on special side. Bronzong with levitate really works wonders on Angie's pokemon. I haven't played the game in ages, is there a move relearner? Fake out will do really well on perrserker. There's also a discord and people are more active there if you want ask there as well. Best of luck