
I think my next chance at playing a Guardian in a campaign will be Roland Banks running the full Well Prepared package. Contrary to the other opinion, I don't think the XP cost of the package is too prohibitive.
If you run the entire suite of cards that allow you to skip on investigating at high shroud locations (Scene of the Crime, Evidence!, Art Student, Working a Hunch) you can fairly safely rely on Magnifying Glass and Flashlight to cover low shroud locations. These cards notably don't really have an upgrade path; they're just 0 XP heroes.
With your clue package dealt with, you're limited on hand slots to take the big two-handed damage monsters without Bandolier when you can fit it. So you're largely limited to one-handed options, like .45 Automatic, Roland's .38 Special, and reigning champion Machete.
You don't need a lot of XP to grab Reliable, which you may not even need if you can keep your Well Prepared bonuses on . .45 Automatic becomes a much more realistic option when more than 2 XP is hard to find and you don't necessarily have Beat Cop to depend on. Besides, there's a lot of Retaliate in The Forgotten Age.
So why this review here, and not on Roland Banks or Well Prepared? Well access to this card is unique to Roland in this strategy. There are only four investigators who at this time can run this package with two different 2 XP core talents, and Roland is the only one who has all 4 stat coverage ( is the missing link for the other 3).
Or just spend 10 XP on 2x Key of Ys 4Head.