Most played cards in Thalia, Guardian of Thraben:

3 Decks
Precinct Captain
3 copies - 1 average
Ethersworn Canonist
3 copies - 1 average
Wispmare
3 copies - 1 average
Hero of Bladehold
3 copies - 1 average
Mirran Crusader
3 copies - 1 average
Gideon's Lawkeeper
3 copies - 1 average
Hokori, Dust Drinker
3 copies - 1 average
Angel of Jubilation
3 copies - 1 average
Emancipation Angel
3 copies - 1 average
Fiend Hunter
3 copies - 1 average
Goldmeadow Harrier
3 copies - 1 average
Honor of the Pure
3 copies - 1 average
Oblivion Ring
3 copies - 1 average
Thorn of Amethyst
3 copies - 1 average
Land Tax
3 copies - 1 average
Armageddon
3 copies - 1 average
Enlightened Tutor
3 copies - 1 average
War Falcon
3 copies - 1 average
Frontline Medic
3 copies - 1 average
Path to Exile
3 copies - 1 average