[@Moonlit Sonata]

I can clarify the first a bit more, but I was thinking more in the line of say how "office equipment" bring the idea of a computer and a printer, etc to the mind. Very generic items like those Waver had on F/Z.

A curse seems like a better explanation for the second, I'll change the wording later.

And for the third, it's just to round the theme, nothing else. I'll do as you say if I ever find an use for money in a Grail War.