They did? How? And gah, I really dislike all of the sexual use of the BMG- she's the Kaa of a girl who's what, probably about thirteen? I don't mind younger characters being romantically/sexually involved when it's appropriate for the culture and time period they're in, but using them for sexual imagery is not on.

It does seem that some people naturally have more powerful Kaa, but that's a different creature to the typical 'special chosen magic-users' thing, and it's also shown that someone's Kaa can grow in strength, so again it's not the same sort of barrier. If I ever get the chance in an AU or something, I'd really like to explore the potential of some of the modern characters concerning magic. I always got the impression that Jounouchi would have a rather powerful Kaa, and definitely lots of potential, for instance. (Also Anzu would so have a pretty Kaa which could kick someone's head in)

I like to think of the Ishtars as magic users a bit, too. If magical documents still exist today in the real world then there should be some in YGO's world, and Malik and Ishizu would probably have the necessary experience, given their time using the Rod and Tauk.

By 'over here' I mean western fantasy.