I've been working on this list, and it's been decently successful:

4 Polluted Delta
4 Flooded Strand
4 Tundra
4 Underground Sea
2 Swamp
2 Island
2 Plains
3 Watery Grave

4 Fog Bank
4 Nemesis of Reason
4 Wall of Denial

4 Lim Dul's Vault
3 Brainstorm
3 Mind Funeral
3 Glimpse the Unthinkable
2 Haunting Echoes
3 Propaganda
4 Force of Will
4 Daze
4 Damnation
2 No Mercy

Board:
3 Crucible of Worlds
4 Extirpate
4 Chalice of the Void
4 Pithing Needle


I've beaten quite a few decks with the wall lockdown, along with the No Mercy and Propaganda. Then, all I did was Glimpse and Mind Funeral (I hit a Thresh deck for 26 cards with Mind Funeral...ouch!) and then I'd wait for the Echoes. I also played 2 Traumatize, which can be backbreaking, especially when followed by Haunting Echoes. My two cents

Matt