Tactics (against communions)

[lwarmonger]

In a current EA game I was recently crushed by an massive communion army of Gift of Heaven spamming Marvarni druids (skillfully managed by vfb) as Neifelheim. Now in a different game I am looking at facing off with another player playing Marverni who also likes the massive communions of death (and the accompanying Gifts of Heaven), this time as Sauromatia. I've got some ideas about how to deal with them (Sauromatia has some unit and thug flexability that Niefelheim didn't), but was wondering if a guide had been done up about it, or if any of the more experienced players have some advice for a relative newbie.