I just read the PDF file you sent. It looks cool. here are a few comments:
All of the modification you made to cards like
Book of Mazarbul and
The Long Dark are not working in formats like movie block, but I guess that you guys are playing open with post-shadows sites.
Why did you choose to make
Saruman's Snows weaker?
I like how you changed some Isengard cards to make Isengard Men more playable. However, the original
Saruman, BT was good and doesn't need to be modified.
Your Palantir of Orthanc,
SSS looks weaker than
the Palantir of Orthanc from RotEL which is legal in your format.
Your
Sting allows people to cheat.
Other than that, these are great ideas to play with friends. However, on a larger scale, people are resistant to changes.