replace Glacial Chasm with Nykthos, Shrine to Nyx

![Nykthos, Shrine to Nyx](http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=373713&type=card)

Dan's deck yesterday had both Crucible of Worlds and Life from the Loam, yet he deemed Glacial Chasm unplayable. If it's unplayable in the land deck it's completely unplayable.

Does anyone have Nykthos?