The Blackmar-Diemer Gambit?
There won't be easy answers in developing an opening repertoire since every opening has its drawbacks.
D4 your first move then he responds with Nf6 , so what would be a strong, very agressive, something surprising move to play with experts or master level players?
If you really wish to compete with master level players, should you not be able to answer that question yourself ?
Try www.365chess.com. Opening Explorer.
D4 your first move then he responds with Nf6 , so what would be a strong, very agressive, something surprising move to play with experts or master level players?