Creature effects.

Hello.
My problem is that I can't find in the game files the things that are responsible for the visual effects on creatures. For example, I'm currently redoing the Necropolis alternate upgrade and I'm stuck on the Nosferatu. Here's the gist:
There's some bright blue effect around the Nosferatu's blade. And I even found its "half" - Nosferatu-fire.(Texture).dds. By changing it from blue to red, I got a certain result - part of the glow on the sword did indeed turn red. But most of it remained blue, and I can't find a way to change this particular effect. I've studied the effects and textures folders, but I haven't found any files with suitable names. Many textures are generally "empty" (completely transparent texture and nothing else). The Nosferatu's .xdb visual files sometimes refer to effects that I can't even find in data.pak, even using file search.

Who can point me in the right direction to find the necessary effects - I would be very grateful.