The process is even more convoluted when extracting the character animations from the D2 CD-ROM. That werebear gif I used to have in my sig was one of the easy ones, and it was still a pain to track-down and isolate the frames I wanted.
The animations for most of the other characters are broken down into body parts (arms, legs, torso, head, etc.), with scads of possible permutations dependent on the armor and weapons, multiple color-pallets (Lilith and Andariel are good examples of that)...
Aaww. She's like my forbidden fruit.
And just because I can, I'm going to point out that in some religions, Lilith is the snake in the Garden of Eden that temps Adam with the forbidden fruit.
Edit: Reziafg is an inside-joke from Blizzard. Its G Fraizer backwards.