Treasure is always present in a game, accelerates decks forward, smooths out mana issues, and is difficult to ever truly interact with, except by hosing other fair decks
#3: Starfield VocalistStarfield Vocalist For the last three cards, I have to say I've gone back and forth a thousand times deciding where to put each of them
After it became obvious that land destruction(s) will take place, almost certainly with collateral damage, Crucible of Worlds is necessary
Horizon Seeker I think re-useable land tutoring is good, snow-lands are basic lands, so that's neat, 3 to get out and 2 to use is a lot of mana to invest in a potential land tutor for a basic though, and it's not an elf, but rather a human warrior, which generally tend to be white (though obviously not always)