Production notes Edit
Series continuity Edit
- Last appearance of Mystique's Principal Darkholme guise and its first appearance since the group discovered her identity in "Turn of the Rogue".
- This episode marks only time the Brotherhood, aside from Scarlet Witch in "The Hex Factor", defeated a member of the X-Men.
- Quicksilver would not return to the Xavier Mansion until "Days of Reckoning, Part 1", where he made no mention of his previous visit.
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