The only problem with saving everyone is that he still had to kill the wraith. if he has to do it in a limited loop times pan it just go instantly more difficult. To make things even harder if they have to flee the island Nephis is all out of essence. This is truly a difficult nightmare for Sunny
how much time passes after sunny's death ? bcs we only know he dies but his death isn't the trigger that looks like it's on a set timer. bcs nephs essence is exhausted and they got no way back if she doesn't has enough time to replenish.