|Appearance||Tales of Symphonia: Dawn of the New World|
|Occupation||Member of the Vanguard|
|Japanese Voice Actor||Chafurin|
Magnar appears when Emil Castagnier and Marta Lualdi are trying to escape from Hawk. He claims to be part of the Martel Knights and orders Marta to give him Ratatosk's core, but she manages to escape with Emil. He then threatens to destroy Luin if Marta does not surrender herself and the core. However, he orders the Knights to destroy Luin anyway. Enraged, Emil defeats him in battle, but it is not enough for him, as he beats him to near death before Marta holds Emil back. Magnar's defeat leaves an ill taste in everyone at Luin, causing them to fear Emil.
As Emil, Marta, and his companions travel the world, they watch his unseen and discover Magnar is actually with Vanguard and has a sort of competition with Hawk regarding earning Alice's appreciation, love, and probably most of all a cute nickname.
Later in the story, after Emil, Marta, and Presea Combatir attempt to leave Altessa's House, Magnar appears again. He reveals that he was with the Vanguard all along, like Decus, and was trying to destroy the reputation of the Church of Martel by claiming to be a Martel Knight. After being defeated, he informs the group that Vanguard uprisings are happening all over the world. Altessa ties him up and keeps him under arrest until the Meltokio army arrives. It is unknown what happens to him after this.