If a Cell Portal causes the Runner to encounter a Sensei twice, the effects of Sensei's subroutine stack.
Question
Edit
Suppose the ice on a server is arranged, outermost to innermost: Sensei, Wall of Static, Cell Portal, all rezzed.
If the runner does not break the subroutine on Sensei, breaks the subroutines on Wall of Static, is returned to the outermost ice by Cell Portal, and does not break the subroutine on Sensei the second time they encounter it, how many subroutines does Wall of Static have the second time they encounter it?
Is it...
Three: the native subroutine, plus one from each encounter with Sensei?
Or four: the native subroutine, plus one gained during their first encounter with Wall of Static, plus two more gained during their second encounter with Wall of Static?