In the given context, the "Immortality Routine" is a special skill or power invoked, presumably, by performing a set of moves and/or incantations in a specific way.
One aspect of the routine is that it empowers the invoker with heightened awareness - so that it can be used to locate the Grand Wizard.
Think of the 1986 movie "Highlander" to give you an idea of what I mean.
If the set of moves and/or incantations is written down (in a manual), then it may be searched for, fought for, and lost. In this case, it is an object which is also refered to as the "Immortality Routine" as opposed to the physical skill or power.
If the scenes were taken from a movie, then it would be much better to include the screenplay as well since that would unlock the small nuances in context that subtitles alone are unable to show.
Student or Learner