Board Thread:General Discussion/@comment-25529502-20150804040107/@comment-5398287-20150804080653

Well, Urahara's got Nake, Benihime, Kūgo's got Energy Blade, Harribel's got her Cero variant, and Isshin's the original Getsuga Tenshō user, so I wouldn't say they're exclusive to Ichigo; however, they're certainly not as widespread among characters as in many series.