Modifying existing animations?

Well, the idea was to look for modern, convenient programs that are popular in the industry. Because they can significantly simplify things.
In general, it's interesting to see your animation now; you seem to know your way around this topic.

I don't really know much; I just Googled a couple of tutorials and spent some time animating. And the animation itself is quite simple.

In any case, here's the complete hero file along with the animation. Put it in UserMODs, generate a map or use an existing one, and choose the new hero for Inferno; I think you'll figure out which one it is. There's only one new animation, which is the idle animation during battle.

And here's the animation separately in .mb format if you want to tinker with it (it opens as a project in Maya 2009).