10 Most Heartbreaking X-Men Moments In Comics History
7. Moira Is Killed By Mystique And Sabretooth
Ever since it debuted in the comics, the Legacy Virus was a wave of terror that decimated the mutant population. Eventually, the disease took the lives of non-mutants as well. This would include Professor Xavier's long time love interest, Moira MacTaggert.
Her affliction convinced the good doctor to try and find a cure herself. In quarantining herself, she manages to succeed in finding a cure. Before she can have the chance to spread the cure to others, her plans are cut short by Mystique and Sabretooth.
The members of the Brotherhood of Mutants attack Moira and in doing so, leave her in a critical state. Rogue tries to save her by using her powers to absorb Moira's medical knowledge, but it proves no use. Xavier's lover passed away on the X-Jet and was buried in her homeland of Scotland.