Most played cards in Calibrated Blast:

4 Decks
Arid Mesa
16 copies - 4 average
Boseiju, Who Endures
16 copies - 4 average
Sunscorched Desert
16 copies - 4 average
Autochthon Wurm
16 copies - 4 average
Scalding Tarn
16 copies - 4 average
Calibrated Blast
16 copies - 4 average
Emrakul, the Aeons Torn
16 copies - 4 average
Scion of Draco
16 copies - 4 average
Shadow of Mortality
16 copies - 4 average
Nephalia Academy
16 copies - 4 average
Boseiju, Who Shelters All
15 copies - 3.75 average
Crime // Punishment
13 copies - 3.25 average
Sokenzan, Crucible of Defiance
12 copies - 3 average
Gemstone Caverns
12 copies - 3 average
Ramunap Ruins
11 copies - 2.75 average
Otawara, Soaring City
9 copies - 2.25 average
Wooded Foothills
9 copies - 2.25 average
Throes of Chaos
8 copies - 2 average
Desert
8 copies - 2 average
Blood Crypt
7 copies - 1.75 average