Mushroom Madness AP

Hello everyone,
I am seeking some help to get the Mushroom Madness AP. I would be so glad if anyone can help me. It sounds a bit childish to ask help to get an AP in forum but, i have run almost 400-450 runs with all kinds of party but still i'm unable to get it even though i am persistent in the patch & it is the only AP pending in my Archeneimies list.
So, i would really appreciate if any of pro players can help me out.
Please post ur IGN's.
Thank you in advance:)