I've made a pack of icons from Heroes of the Storm for WoW for personal use and realised I may as well share them with you.
7z archive contains 1351 icons in blp and png formats. There are some icons that exist in WoW already but I cba to go through 3.3.5 stuff to see which ones are already present and which ones are in newer xpacs. There may be some duplicates although I tried to comb them out. There may be some stuff missing but tbf I am not planning to update this pack even if. Does not contain dbc file, you'll need to add them yourself. Do whatever you want with them, you don't even need to credit me.