New multi-land

[thorme]

Border Crossing
Land
When Border Crossing comes into play, an opponent chooses a color.
T: Add one mana of any color except the chosen color to your mana pool.


Obviously better the more colors you play.  On the plus side, if your opponent chooses poorly, this is a 4-color dual with no drawback.  On the other hand, if you're hurting for a color and your opponent knows it, this will be frustrating by giving you everything except what you need.

Feels really useful in the right places, but by no means busted - and I'm happy with the simplicity of it.  Interested in folk's thoughts.

[Wagner]

I also like the simplicity of it, it's basically bad in 2 color decks, in 3 colors, odds are it will better or worse than a normal dual, and in 4 and 5 colors it's just really good. Also, playing this turn 1 is hilarious, even if the opponent knows what your deck is, he won't know what color you're missing.

That said, I still think it's a bit too good for Wizards to print. Here is another weaker idea, but still as simple.

Border Crossing
Land
When Border Crossing comes into play, an opponent chooses a color.
T: Add one mana of any color to your mana pool, that mana can't be used to cast spells (or abilities?) of the chosen color.

[thorme]

I'm not sure if City of Brass is something Wizards wouldn't print anymore, but that's the comparison card I had in mind when thinking about this one.  I'm pretty sure you just about always run City over this in a multi-color control deck, but for some decks it's a close call and this is more interesting/skill-testing (imo).  I actually like your version, but not quite as much and I'm still not sure the power-level of the original is too high.