Thought was one of the two Logrusfoils that was required by Annadil to open the Gate of Revolution. It was originally given to House Nurgal, before Annadil stole it back for this purpose. Its special property is that it aids its wielder in molding Shadow.

After Annadil's defeat, Shizumaru claimed it. For the most part, it was kept securely locked up in the Keep's vaults, only brought out when it was necessary. Following Shizumaru's imprisonment in Chaos, Moriya used it for a brief time (most notably for helping track down and battle Demogorgon). Afterward, he returned it to Lord Nurgal when they met at the memorial for the Second Battle of Demogorgon.