Board Thread:General Discussion/@comment-3354691-20160713191809

As we saw recently in chapter 676, Ichigo fused the Getsuga Tenshou with a Gran Rey Cero. However, back during the Heuco Mundo arc, Grimmjow clearly stated that the Gran Rey Cero can only be used by the Espada. Ichigo certainly has the power of a Shinigami and a Hollow, but he was never a part of Aizen's Arrancar army, let alone a member of the Espada. We're up to chapter 682 and Kubo has yet to explain how Ichigo gained an ability reserved for the Espada.

Any theories as to how Ichigo is able to use Gran Rey Cero? I have some ideas of my own, but I want to hear your thoughts first. I believe that a theory is more credible if multiple people come to the same conclusions independently of one another. If you post your theories, then we would be able compare notes. My theory also constitutes a huge text block, and you giving your thoughts first would allow me to bide my time until everyone is ready to receive such a huge block of text. 