First appearances of characters whose name contains “Opsidian the Dark”"

IssueTitleNotes
50X-Man1st appearance of Wynter; 1st appearance of Opsidian the Dark; 1st appearance of Integer; Story continues from Generation X #50
50/NSX-Man1st appearance of Integer; 1st appearance of Opsidian the Dark; 1st appearance of Wynter; Story continues from Generation X #50