Sleuf is a playable character in Fire Emblem: Thracia 776. He is a twenty-one year old Priest of Blaggi who can communicate with the spirit of BishopClaud. He can be recruited in Chapter 16A if the player had previously visited the church in Chapter 15 with Leif, and chosen the route to Fort Norden from there, and then visits the easternmost village in the next chapter with Leif as well. Sleuf appears to be an especially pious, sedate, and virtuous individual, and his sound judgment often eases the minds of troubled people, like Amalda.
He joins Leif's cause to fulfill Claud's prophecy and to assist in preventing the destruction of the world by the Loptyrian Cult. After the war, he travels around the continent to spread the teachings of his religion, and contributes greatly to its eventual mainstream acceptance.