not so hard since i beat her first try and i dont know i cant switch members before battling her, so my teams not actually my plan on facing her, nonetheless, i just left my magic bounce espeon in the box for my rock smash buddy, i only use my main ATLASFLAME (Charizard) to destroy her prankster sableye, and her honchcrow roclslided and flinched by my EARTHMYTH (Flygon), others were taken out by my HELLFOX (ninetails) Drought and LEAFBLIGHT (Venusaur) chlorophyll combo, Atlasflame has solar power by the way. Her Umbreon was just 2HKO by my ALLOYFIST(Lucario).. GG Luna
for Bennet, well ATLASFLAME and HELLFOX took care of him