Whoa, quite the observant one, are we? :P
The fact that people actively ask whether Feral Rage should be in the Guro Version is enough reason for me to put it there in the next update.
I googled what "Ichor" means after reading your comment (I had no idea at the time) and I might agree on removing the art, not sure yet, it still fits the "deal damage to a minion" thingy.
I changed Onyxia's art to the old succubus art because I didn't really like the Onyxia art I used before and realized when looking at the old filenames that the old succubus art was not supposed do depict a succubus but - you guessed it - was Onyxia in the first place.
And now for the interesting news: I said I would not be doing golden card animations because it's very hard on a technical level and nobody had golden cards anyway. The thing is: I said that years ago. Time flies. Since then, not only has my skill with Umod and Photoshop grown, but also people's card collections, and especially people's Hearthstone Hero levels. This means that nowadays you very often see the golden versions of Basic cards, and the fact that those do not work with my mod has started to bother me.
I do still not plan to add golden versions of every card. However, since I do have the necessary know-how these days, I plan to slowly but steadily add golden animations to my versions of the most commonly played golden cards in the game.
As a teaser, have a (ridiculously zoomed in) preview of the new golden version of Animal Companion:
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No ETA yet.