In the season finale , Nyssa works with Oliver and allies to defeat and kill Ra 's , appointing Malcolm Merlyn as a successor .
Nyssa and Oliver are later married as part of Ra 's al Ghul 's scheme to recruit a worthy successor .
In the season finale , Nyssa works with Oliver and allies to defeat and kill Ra 's al Ghul 's , appointing Malcolm Merlyn as a successor .
Nyssa and Oliver are later married as part of Ra 's al Ghul 's scheme to recruit a worthy successor .