With your tales, I'd strongly recommend 
Mines of Khazad-Dum.
If this is sheer beatdown, why no 
Lord of Moria?
And also why no 
Gimli's Battle Axe?
I also don't understand the FOUR copies of 
Delving. It's a nice card and all, but 
Book of Mazarbul should do much more for you...and you've got only a 40-card 
![Moria [Moria]](https://lotrtcgdb.com/forums/Smileys/classic/moria.png)
 paired with it, so it's not like you need all that 
Delving anyway.
One more thought: 
Storm of Argument. Could be an awesome way to get 
Flurry of Blows back. 

EDIT: One other thought: I see very little Balrog protection. I know your Site 7 discards allies, but it couldn't hurt to toss in 
Dwarven Smith as a sacrificial lamb. Heck, I'd rather have him than the movement penalty (and fellowship size) increasing 
Dwarf Guard, though the Guard makes an okay speed bump as well, I guess.