Khan Great

I am having the very same problem, I contacted support and they assured me that it is no different for the Dual blade however I have had nothing but 3 slot weapons Riftwalk or Dawnforge so I guess my character is broken I just bought another 12 chests...nothing but 3 slots

I have purchased 30 or more chests for Riftwalk/Dawnforge with my Dual Blade and never got more than 3 slots. Am I just that unlucky ? Is anyone having this problem?