Most played cards in Ruric Thar, the Unbowed:

2 Decks
Exploration
2 copies - 1 average
Choke
2 copies - 1 average
Possibility Storm
2 copies - 1 average
Carpet of Flowers
2 copies - 1 average
Blood Moon
2 copies - 1 average
Utopia Sprawl
2 copies - 1 average
Stranglehold
2 copies - 1 average
Price of Glory
2 copies - 1 average
Wild Growth
2 copies - 1 average
Null Rod
2 copies - 1 average
Grim Monolith
2 copies - 1 average
Defense Grid
2 copies - 1 average
Chrome Mox
2 copies - 1 average
Worldly Tutor
2 copies - 1 average
Lightning Greaves
2 copies - 1 average
Mana Crypt
2 copies - 1 average
Ancient Tomb
2 copies - 1 average
Mox Diamond
2 copies - 1 average
Mana Vault
2 copies - 1 average
Sol Ring
2 copies - 1 average