Rock Gnome

Tinker’s Tools

Artificer's Lore

Whenever you make an Intelligence (History) check related to magic items, alchemical objects, or technological devices, you can add twice your proficiency bonus, instead of any other proficiency bonus you normally apply.

Tinker

You have proficiency with tinker's tools. Using those tools, you can spend 1 hour and 10 gp worth of materials to construct a Tiny clockwork device (AC 5, 1 hp), such as a clockwork toy, fire lighter, or music box. The device stops functioning after 24 hours (unless you spend 1 hour repairing it) or when you use your action to dismantle it; at that time, you can reclaim the materials used to create it. You can have up to three such devices active at a time.