History
Psylocke along with several other X-Men stopped N'astirh from opening a portal to Limbo and releasing a swarm of Demons. However, unknown to them S'ym absorbed N'Astirh's power and joined forces with Madelyne Pryor. The pair surprised the X-Men and there combined powers killed Psyclocke along with several other X-Men. [1]
Attributes
Powers
Seemingly those of Betsy Braddock of Earth-616.