Eberron Artificer

In addition to the sublass option presented on dndbeyond, the following Artificer Specialties are also available:

Arcane Sleuth: You are adept at magically crafting tools that help you find clues and unravel mysteries around you. The combination of these implements with your deductive reasoning, encyclopedic education, and deep understanding of magic make you more than a mere investigator or detective. You have an uncanny ability to read people and situations, allowing you to predict your opponent's moves before they happen, uncover complex conspiracies with a bare handful of clues, and act with preternatural quickness before anyone else realizes what has happened.

• Source: Eberron Archetypes, page 54