What is worth screening for with scanner?

[Boozie]

I am about to start my first game and decided to go with Mage. I was wondering what people can suggest I screen for with the scanner before I pick my game? Basically anything you can suggest i.e. make sure you get trap on the first to second island so you can get the medals or make sure you get any spell X at all or by X island. Also any artifacts and/or units worth making sure are in my game and/or access by X time.

I don’t really know about “set” artifacts but would it be worth restarting until the full set of something (is there a mage one?) is available?