I did not buy doto compendium because i do not support valves decisions about item trading restrictions from the previous one. And since i do not approve prices on hearthstone card paks ever...
Jo you don't need to buy the new hearthstone expansion, you only need to craft golden Whizbang the Wonderful in day 1! (TBH I'm surprised you didn't make a comic of him yet as he can easily divide the girls)