I believe attack is ATD and really not ideal for pct.  It can be hard on sex drive and actualy lower E too much.  I would say if you cant get nolva, just search the net it is available.  Other wise I have had good results with 6 oxo and N1T by universal.  This PCT has always worked well for me.  What are you coming off of, like Donky Kong said this is not a good idea for a full blown cycle of roids.