All I did was use my quilava to kill her lead and force her to burn all her potions on cacnea while sweeping through the rest of the team. Of course I had to switch at Cradily which is what mankey is for to kill it with karate chop and seismic toss. Didn't even need my Ariados QQ
I can see why the average person would have trouble with her though
Picking up a mankey would probably be a good idea if your only problem is her cradily.