Whatever, it might have taken me a couple of failures but I finally beat her team my way. I just needed some patience. It ended with a one on one Lvl 45 Scrafty vs. Muk and I only used that Magnaton to take out Tentacruel and Nidoqueen.
Can't wait for the next episode, pretty sure I'll have a better advantage against the next gym, this is the only one that took me over one try.
Are there any subquest I need to worry about?