Most played cards in Derevi, Empyrial Tactici:

4 Decks
Vendilion Clique
4 copies - 1 average
Venser, Shaper Savant
4 copies - 1 average
Jace, the Mind Sculptor
4 copies - 1 average
Wasteland
4 copies - 1 average
Windswept Heath
3 copies - 0.75 average
Flooded Strand
3 copies - 0.75 average
Hallowed Fountain
3 copies - 0.75 average
Horizon Canopy
3 copies - 0.75 average
Marsh Flats
3 copies - 0.75 average
Verdant Catacombs
3 copies - 0.75 average
Misty Rainforest
3 copies - 0.75 average
Arid Mesa
3 copies - 0.75 average
Scalding Tarn
3 copies - 0.75 average
City of Brass
3 copies - 0.75 average
Wooded Foothills
3 copies - 0.75 average
Polluted Delta
3 copies - 0.75 average
Hinterland Harbor
3 copies - 0.75 average
Tropical Island
3 copies - 0.75 average
Tundra
3 copies - 0.75 average
Gaea's Cradle
3 copies - 0.75 average