Matoriv is a character in Dragon Quest: The Adventure of Dai. He is a former member of Avan's party who faced Hadlar in the past and the older brother of Masopho. He becomes Popp's teacher. He has mastered over 100 spells, and created both Donk and Frizz Cracker. He experimented with Forbidden Magic that should be only used by Monsters, which shortened his lifespan and gave him some health issues, although he still managed to live close to a very advanced age.