Shinobi Shaw, Sebastian's Shaw son, first appeared in X-Factor #67 in the nineties, created by Chris Claremont and Whilce Portacio.
X-Factor #67
But right from the beginning, there were questions regarding Shibobi Shaw's lineage, as he mass density controlling powers were more similar to fellow Hellfire Club member, his "uncle" Henry Leyland.
X-Factor #67
It was an issue that[...]
