 In "Uncanny X-Men" #472, he reveals that he was the one who resurrected his sister Betsy one year to the day after she was killed in Spain.In restoring her to life, Jamie also manipulated the quantum forces making up his sister, granting her complete immunity to psionics, magic, and reality-warping.Uatu the Watcher also appears inexplicably, implying that something of cosmic significance is about to happen.