In the other levels, the forward power attack for blade and blunt makes you "run" before striking, which is kinda cool and useful. The master one, however, while more powerful, has a less useful "animation", you don't run forward anymore, or not as much.

Is there a mod which changes this? I don't want any of those super fancy and stylish animation overhauls, hopefully just a simple mod that makes you also run forward when you have master level, also hopefully not the same animation as in the other levels, because I want to feel that the character learned something new...

Thank you.

As far as I know, there isn't anything like this. But there are many animation overhauls (I know you don't want anything too stylish and lore-breaking); check the Nexus category for animations. Hopefully someone will come along with more knowledge than I.

How about this one:

http://www.nexusmods.com/oblivion/mods/13388/?

You'd have to rename the file to replace the animation as desired, but might fit the bill?