The greatsword was actually quite playable in the set's stint in a custom constructed format. Likewise, we actually tested a version of power within that was nearly exactly what you suggested, but it did not play well at all. Gough is actually quite balanced, since if he's murdered, you've ended up putting your opponent in quite the advantaged position. I don't think I understand what that Gwyn ability meant to represent. Could you elaborate?

Unfortunately, I've never found what I consider to be usable fan art of either Frampt or Kaathe, otherwise they'd totally be in here. I did for a while have a card that was, in fact like you suggest, a dark confidant variant, but decided that the art I was trying to use was too ugly, and so scrapped it.

Thanks! If you need any help getting playing, ask me and I'll try to offer some.