Heartsbane

House Tarly's Valyrian steel sword, taken by Sam and later given to Jorah.

Heartsbane is the Valyrian steel sword of House Tarly. In the sixth season of Game of Thrones, after his father Randyll forbids him from ever returning to Horn Hill, Samwell Tarly takes Gilly and Little Sam with him to the Citadel and steals the sword. In the eighth season, as the defenders prepare for battle against the army of White Walkers, Sam presents Heartsbane to Jorah Mormont.