Cryptic Spires is some new tech from 2X22 that I'm using to my own ends. Each Cryptic Spire acts as a ticket to redeem for any of the lifegain lands (Such as Tranquil Cove for WU). This solves the issue of certain dual lands being significantly less valuable than its pick placement or duals being consistently overvalued out of fear that you'll miss your one chance for a given dual land. 15 in a 540 cube should have a decent chance of appearing in numbers enough to make fixing work, though this number might increase if they are still not prevalent enough. Also, it appears some updates in the past were doubled, so I've removed all the other doubles.