X-Men Vol. 1 (1963-1981) / The Uncanny X-Men Vol. 1 (1981-2011) #231

Argumento

The events in this story take place after New Mutants #66. Illyana Rasputin, the New Mutant's Magik, fights for her life against the monster S'ym and the demonic hordes of Limbo. At her darkest hour her brother, the mighty Colossus, shows up to help. But he's dead, isn't he? (mycomicshop.com)