Most played cards in Zur the Enchanter:

3 Decks
Brainstorm
3 copies - 1 average
Demonic Tutor
3 copies - 1 average
Windswept Heath
3 copies - 1 average
Enlightened Tutor
3 copies - 1 average
Watery Grave
3 copies - 1 average
Underground River
3 copies - 1 average
Underground Sea
3 copies - 1 average
Urborg, Tomb of Yawgmoth
3 copies - 1 average
Force of Will
3 copies - 1 average
Mana Leak
3 copies - 1 average
Bloodstained Mire
3 copies - 1 average
Talisman of Dominance
3 copies - 1 average
Talisman of Progress
3 copies - 1 average
Fellwar Stone
3 copies - 1 average
Dimir Signet
3 copies - 1 average
Swords to Plowshares
3 copies - 1 average
Toxic Deluge
3 copies - 1 average
Azorius Signet
3 copies - 1 average
Mental Misstep
3 copies - 1 average
Isolated Chapel
3 copies - 1 average