User blog comment:Xilinoc/Ch. 683 - The Dark Side of Two World Ends/@comment-2211792-20160721122008/@comment-5398287-20160722040921

Well, Shinken Hakkyoken is an extremely powerful Shikai when used against certain opponents, a Resurreccion may as well be a Bankai for the raw power boost it grants the user, and Nemu...well, the super cancer she gave Pernida was also pretty powerful.