Most played cards in Rogue:

3 Decks
Bomat Courier
4 copies - 1.33 average
Fumigate
4 copies - 1.33 average
Approach of the Second Sun
4 copies - 1.33 average
Spire of Industry
4 copies - 1.33 average
Spring // Mind
4 copies - 1.33 average
Supreme Will
4 copies - 1.33 average
Negate
4 copies - 1.33 average
Irrigated Farmland
4 copies - 1.33 average
Ipnu Rivulet
4 copies - 1.33 average
Botanical Sanctum
4 copies - 1.33 average
Cast Out
4 copies - 1.33 average
Hour of Promise
4 copies - 1.33 average
Heart of Kiran
4 copies - 1.33 average
Unlicensed Disintegration
4 copies - 1.33 average
Inspiring Vantage
4 copies - 1.33 average
Veteran Motorist
4 copies - 1.33 average
Concealed Courtyard
4 copies - 1.33 average
Toolcraft Exemplar
4 copies - 1.33 average
Hazoret the Fervent
4 copies - 1.33 average
Scrapheap Scrounger
4 copies - 1.33 average