This is probably my last forum dealing with reversed openings. Thanks for all the responses on my other forums! 

So after 1. d4 d5 Nc3 white is playing the chigorin backwards. With such a tactical game, this can't be bad. The chigorin, if you are unfamilar is 1. d4 d5 2. c4 Nc6!?

It's NOT going to be a reversed Chigorin Defense because Black won't play ...c5 in an unfavorable circumstance.

I used to use your move order to try to back-door into the Blackmar-Diemer Gambit with 4 f3 and 5 e4 (a straightforward 3 or 4 e4 doesn't work because of just ...Nxe4, messing up the gambit's main ideas).  It gets to be sort of a cross between the Tromp and the BDG.

Of course ...c5? is a mistake but I am talking about DO7 which starts d4 d5 nf3 nc6