Tana, the Bloodsower Tana, the Bloodsower suffers from needing a lot of help to really be super dangerous
It's also an Imperial Seal for you - one mana at sorcery speed to put any card from your deck on top of your library
Grim Monolith adds three generic mana when you tap it, though it does come with a slight drawback in that it doesnt untap during your untap step
All categories, but one, played into this idea of "and." The other, what I called "overlap," didn't really fit the description of "and." Overlap designs fit both colors individually but at a better cost because players have to use two colors to cast it
Are the other Duals not expensive
Every year, Magic: The Gathering releases more cards than any one person could reasonably keep up with