In the instance of protection from artifacts, it will be protected from anything that is an artifact even if it is something else in addition to being an artifact
It only tutors out a wizard if you cycle it, but that's not as big of a downside as it may seem at first
Before the end of that decade I had amassed a pretty impressive Pokemon error collection
Although characters that become rested with [Activate: Main] are vulnerable to attack, "Doc Q" and "Van Augur" have [On K.O.] effects that allow you to draw cards to make up for the loss
This lets you double up on artifact tokens like Clues and Food, double up on ramp form Wayfarer's Bauble, and get double mileage out of aristocrats like Marionette Apprentice and Marionette Master
These sets are either very strong multicolor sets (Invasion/Planeshift, Khans of Tarkir, Return to Ravnica/Gatecrash, Shadowmoor), sets with great removal at common/uncommon (M11, Conspiracy/Conspiracy: Take the Crown) or strong colorless or colored cards that can reward any draft (Mirrodin/Darksteel and Theros)