Esrin Fortuna

Esrin Fortuna is a magic user contacted by Constantine to help Oliver Queen channel Magic.

History
Oliver and Felicity went into a hidden casino in XXX city, where they found Esrin was found gambling. Oliver was told by constantine he would know who Esrin was.

When Oliver and Felicity found out she was the one, she brought them into another realm where she would teach Oliver how to Channel magic through Light and Hope.