http://www.mtgvault.com/card/sacred-ground/- For land destruction decks that can really cramp the power of Emeria... this can also handle to some degree Eldrazi. I can bring lands back with Sun Titan, but if both Sun Titan and Emerias are being destroyed... may cramp the deck style over all... Not sure if I need for, or just 2 for emergencies...
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Cards for certain situations: http://www.mtgvault.com/card/ghost-quarter- For facing a similar deck or a deck that has special lands I can not control well. This does slow the deck down a bit.. but with the ability to pull it back with Sun Titan, can be pretty effective later game in destroying mass lands.