Sauza

Sauza is Karudio's partner. They are one of the ally teams during the Faudo arc, using Ice Armor Magic.

At some point in the past, they were ambushed by two allied Mamodo named Snail and Maraion. Although Karudio and Sauza defeated both, the battle left them with a negative prejudice regarding "teamwork" and they are highly hesitant to work with others.

(Source: Zatch Bell! Wiki, edited)