Wait... but now everyone will be thinking everyone else will pick that weapon so then no one will pick that weapon... *thinks a second* but now they'll have just read this... so everyone will be back to picking it again *brain starts to steam* but now they'll read that and ... GAHHHH! ... now my head hurts...
It is not that hard. Based on the results we will be able to determine if each designer has an even or odd depth of metacognition.
Of course I could make the math messy by noting that, before this post, roughly half of the cards were that weapon.