Well, after that one little line, I'll be quite surprised if Ren and Chelsea haven't hooked up by the end of the story.
Also, for what it's worth, I recall "Medieval Shadow" actually being a mistranslation of what Chronos titled his deck... I can't quite recall what it should be. "Darkness of Medieval Times"... A pun on "Darkness" and the "dark ages", I believe.
That said, that was fairly amusing. Sam doesn't seem to follow Kaiba's advice about not making a deck focused on one big monster. So far all we've seen is her trying to get Ha Des out as big and often as possible. But that's likely to change, I'm sure.
Also, as a friend pointed out, Tucker's design reminds me of Axel. Not that that's a bad thing, it just screamed at me to make "Card Break" jokes about it.
All in all, a decent chapter. Next one should be good, as I wasn't expecting Erik to really play any role.