Before the introduction of wow.tools, I was never able to take pics of the versions with extra effects, but now I can. There are three: fire, frost, and lightning. All remain sadly untameable.
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The spirit raptor we have in the game has the lightning skin, but on the frost model. The latter has a really subtle halo over it that just makes the skin look a bit lighter than it would on the regular raptor model.That look is now called "raptor2_lightning-frost":
The frost texture is also used on the regular raptor model (but untameable), because it's the only one of those three special looks that looks reasonably natural without any effects. So you can compare what the frost effects do to the skin:
The latter is the regular model, without effects. It's a really lovely pale grey.
