In 2017 Kel'Thuzad finally joined the nexus, and I designed a whole suite of Death Knight skins to accompany him, as was only fitting.
These crossovers were always some of the most fun to do (especially when we got to have a bit of fun with the lore!)
The Sonya skin was also the first time we played around with more minor variations, so we got to do a helm-on and helm-off version with different weapons. I was really happy about that, since I couldn't decide which I liked more at the time!
We also had an amazing animated trailer -https://www.youtube.com/watch?v=-jInzG9Ukrk - produced by Titmouse for this set, which was a great project to watch come together.