Most played cards in Calibrated Blast:

3 Decks
Boseiju, Who Endures
12 copies - 4 average
Autochthon Wurm
12 copies - 4 average
Sunscorched Desert
12 copies - 4 average
Nephalia Academy
12 copies - 4 average
Arid Mesa
12 copies - 4 average
Scalding Tarn
12 copies - 4 average
Calibrated Blast
12 copies - 4 average
Scion of Draco
12 copies - 4 average
Shadow of Mortality
12 copies - 4 average
Emrakul, the Aeons Torn
12 copies - 4 average
Boseiju, Who Shelters All
11 copies - 3.67 average
Crime // Punishment
10 copies - 3.33 average
Sokenzan, Crucible of Defiance
9 copies - 3 average
Ramunap Ruins
8 copies - 2.67 average
Gemstone Caverns
8 copies - 2.67 average
Otawara, Soaring City
7 copies - 2.33 average
Wooded Foothills
7 copies - 2.33 average
Throes of Chaos
6 copies - 2 average
Blood Crypt
5 copies - 1.67 average
Desert
5 copies - 1.67 average