User blog comment:Apocaylpse06/Ichigo Kurosaki's (New) Zanpakuto/@comment-919115-20110817034044/@comment-2048489-20110817235843

Not just rukia's reiatsu, mind you. It's Rukia's, Byakuya's, Renji's, Kenpachi's, Toshiro's, and Ikkaku's as well.