I played this line many times in Blitz games and I have got many good and a few painful experience
9... Bc8d7 10. O-O-O
I castle Queenside and I intend to storm his king with my pawns.
10... Nf6xe4
?! This exchange is not necessary. He should have played Bc6 first.
11. Qe2xe4 g6 12. Qe4xb7
I knew I was opening lines against my own king when I took this pawn. But being 1 game I was ready for a sharp attacking game.
12... Be7f6
?! Rb8! was better. I cant take his a pawn because of Ra8! Hence I would play Qa6 with a double edged position
13. h4
! I must attack his king. The pawn on g6 is an extra motivation for me. Further the h pawn controls the g5 square and makes it possible for a knight to land on e5. For example the immediate Ne5? is met by Be5 de5 Qg5 check! Kb1 and Qe5 winning a pawn and also attacking b2 and protecting c7 and also threatening Rb8
13... c6
? A nothing move. c5!? deserves consideration. Probably my opponent was hoping to trap my queen