Board Thread:Questions and Answers/@comment-25065646-20150820204200/@comment-25687181-20150825022819

This is due to the abnormally high concentration of reishi in the Royal Realm. Due to the high concentration, quincies are able to use their techniques easier, but it will be impossible for the Shinigami's to create the reishi footholds that they use. At least, that's what I think.