Been getting one pack at a time from earned gold. Just hit a legendary, blackspire... tower, turret. After 100 and... a few more packs, time to save earned gold for next set.

PS if hadronox taunt druid getting you down as a control deck. Consider mage or shaman for polymorph, hex. And skulking geist to take out their Naturalize so can't use it on their hadronox before you poly morph or hex it