It's a bad idea because you don't cast lands. Lands can't have a mana cost. Look at Rupture Spire if you want to see how a land having a "cost" is handled.
Encouraging players to play with Nonbasic Lands is odd. On one hand, you want to support players who either spend more money, or take more time to assemble a pile of cheap nonbasics. On the other hand, you don't want to discourage people who just throw a deck together and toss some basic lands in, or people who just don't have the bank to buy good nonbasics.
If I was to reward anybody for anything, I'd probably do it for Basic lands... but I can get the opposite approach. I guess it can go the other way on occasion. Would be doubly good if the set had a cycle of unique common and uncommon non-basics, like what popped out of Zendikar.
It wouldn't be a super powerful theme, there'd probably only be a couple of rares, especially cause I feel the set is already a bit heavy on rares. I mainly thought it'd be interesting.
I know your balancing this around Commander, but you should still make the lands legendary. A regular deck could be built with half of the lands being like this otherwise.
it still comes into play tapped, so it's not that powerful.
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I'm considering a new Mechanic: Lands with mana costs and "Affinity for Nonbasic Lands". What do you think? Is this a bad idea?
It's a bad idea because you don't cast lands. Lands can't have a mana cost. Look at Rupture Spire if you want to see how a land having a "cost" is handled.
Yeah, it needs a lot of comp rules fixing to allow lands with a cost. (Or rules on the card, as above)
But I do like the idea.
So perhaps "When ~ comes into play, sacrifice it unless you pay
. This cost is reduced by 
for each nonbasic land you control."
Encouraging players to play with Nonbasic Lands is odd. On one hand, you want to support players who either spend more money, or take more time to assemble a pile of cheap nonbasics. On the other hand, you don't want to discourage people who just throw a deck together and toss some basic lands in, or people who just don't have the bank to buy good nonbasics.
If I was to reward anybody for anything, I'd probably do it for Basic lands... but I can get the opposite approach. I guess it can go the other way on occasion. Would be doubly good if the set had a cycle of unique common and uncommon non-basics, like what popped out of Zendikar.
It wouldn't be a super powerful theme, there'd probably only be a couple of rares, especially cause I feel the set is already a bit heavy on rares. I mainly thought it'd be interesting.
I know your balancing this around Commander, but you should still make the lands legendary. A regular deck could be built with half of the lands being like this otherwise.
it still comes into play tapped, so it's not that powerful.
Post your comments on Metroid here!
If your comments are on a small number of specific cards, they may be better added to those cards. This is for comments on the set as a whole.