Most played cards in Azorius:

2 Decks
Preordain
8 copies - 4 average
Force of Will
8 copies - 4 average
Flooded Strand
8 copies - 4 average
Tundra
8 copies - 4 average
Stoneforge Mystic
8 copies - 4 average
Swords to Plowshares
8 copies - 4 average
Rest in Peace
4 copies - 2 average
Snow-Covered Island
4 copies - 2 average
Fragmentize
4 copies - 2 average
Containment Priest
4 copies - 2 average
Force of Negation
4 copies - 2 average
Stony Silence
4 copies - 2 average
Lavinia, Azorius Renegade
4 copies - 2 average
Surgical Extraction
4 copies - 2 average
Snapcaster Mage
4 copies - 2 average
Flusterstorm
4 copies - 2 average
Scalding Tarn
2 copies - 1 average
Polluted Delta
2 copies - 1 average
Misty Rainforest
2 copies - 1 average
Library of Alexandria
2 copies - 1 average