The four new Darkmoon Decks; Ascension, Radiance, Symbiosis and Vivacity are all stealth nerfed. Previously (as in a few hours ago) you could buy them off AH using the filter “usable only” and “upgrades only” and equip them starting at level 70.
Now they’re suddenly level 80 required to equip, which is not reflected in the filters. Keep this in mind so you don’t waste your money.
Also - Blizzard please stop lying (Allied Race unlock is not available during Early Access) and stop stealth nerfing stuff. It’s false advertising at best and fraud at worst.