Grats to you guys. This kind of thing is a lot of fun (friend and I recently duo'ed Noth as Shadow and Disc, was lots of fun). Makes me want to try this.
Here is a 3 man of Gruul
It has little to do with Wrath, and a lot to do with what players will try and get to work in this game. Blizzard themselves has said before that they are amazed at the things players sometimes come up with.