User blog comment:Xilinoc/Ch. 629 - Gate of the Sun/@comment-26091912-20150604121151/@comment-26140781-20150604175517

Special War Powers include Ichigo, Mayuri, Sosuke "Troll" Aizen and Kenpachi. As for why Mayuri is one of them, he practically has a plan for everything. The final Special War Power could either be Shunsui, Isshin, Ryuken, Yoruichi, Masaki?, Kisuke, Grimmjow, Shinji, Hachigen or Love.