So the Redrix Broadsword quest has to be done individually on each character to obtain multiples. However, I have 2 characters, and 1 of them completed the quest this season with the 5 valor resets. The other character had not even bought the quest from Shaxx at that time. However now, after completing the quest on character 1, I am no longer able to buy that quest from Shaxx this season anymore (however I could probably have done this quest more than once this season if I had bought it from Shaxx on character 2 BEFORE turning it in on character 1)