If we go for an exile theme in white, and have auras interacting with exiled cards, this would be good support for that.
I know "free" cards have bitten in the past, but is this much different from a colored Memnite?

Probably less powerful than Memnite, since it won't get you things like Metalcraft (and of course, the ACC).

Can we have the exiled card return if the creature leaves play? Or, yet another O-Ring?

Wouldn't bother me too much, unless you wanted to enchant that card.

This seems sensible to me. The Chrome Mox / Gemstone Caverns drawback is probably enough that this wouldn't be very competitive. I like the design, though.

I meant this as an enabler for cards like Spectral Bastion if we choose to incorporate them.

This is totally unrelated to the card itself, but wow: this is the 10,000th card on Multiverse. That's pretty impressive.

Wow. That is impressive.

­:D Thank you one and all!

If temp. exiling is a theme in white, why is this card permanently exiling? I added a clause that let you get the exiled card back, which makes this card a bit spicier in the process. People are cool with that, right?

Is white's theme "temporary exile", or just "playing with exile"? It doesn't seem clear to me that it has to be restricted to temporary exile.

In this case I'm happy to let the exiled card return; it was even discussed 6 months ago. But I don't see that white automatically has to only use temporary exile.

That's a fair response. It seems, to me, that I've organically moved to temp. exile over 'plays with exile'. If we were doing plays with exile, we'd see a lot of cards that did stuff in the exile zone, or moved cards through it into other zones, and we haven't really done that. Instead, there's just been the occasional card that uses exile. I don't know about you, but 'some cards that use exile' doesn't feel like a theme to me. It feels like an author who hasn't realized that she used the word 'effervesce' five stinking times in the same book (Anne Rice's 'Interview with a Vampire'. What the heck?).

I apologize about moving forward with something that makes sense to me, without explaining my point of view. That's not the way to do things. I'm happy to take a few steps back and go back to 'plays with exile'. But if we do, I suggest that we legitimately mess with it. Otherwise... well, I'm one of the designers, and I wasn't picking up on it.

Edit: After having read your response in White Common Submissions, I got agree that, yes, Vested Light isn't really temp. exiling. And neither is Redrat... redraclt... whatever. It's just the word "Backwards Talker" spelled backwards. And, heh, yeah, that's true. But they still feel like O-Ring variations, even if they aren't, strictly speaking, that.