Esrin Fortuna was tasked with teaching Oliver how to use this type of magic, but she discovered he had more darkness than light inside him and gave up on teaching him. However, Oliver later used this power against Damien Darhk, after focusing on the memories of hope that his friends on Team Arrow gave him managed to overpower the darkness inside him. This allowed Oliver to protect himself from Damien's magic, forcing the dark sorcerer to flee.