One of the most powerful mutants the X-Men ever encountered only appeared in a handful of issues, wasting a promising future ...

A preview of NYX #7 features a disagreement between two X-Men leading to a Krakoan challenge to a fight to the death.

but Odysseus explains that the rock which blocks the doorway is far too large for them to roll away themselves and that if they kill the Cyclops they will simply die a slow death, trapped in the cave.