"Death" refers to N'Zoth, because this deck used to be late-game oriented. It has become much more tempo, relying on the two Karazhan cards Netherspite Historian and Nightbane Templar. I used to use 2x Ivory Knight, but have cut those for Brann and Sylvanas.
Furthermore, it doesn't look like Gadgetzan is giving any love to Dragon tribe outside of Priest. What I really really want is a solid 2-drop for stats (cough cough Wyrmrest Agent) because Faerie Dragon works, but could be better.