Most played cards in Rogue:

1 Decks
Brainstorm
4 copies - 4 average
Wasteland
4 copies - 4 average
Daze
4 copies - 4 average
Stifle
4 copies - 4 average
Aether Vial
4 copies - 4 average
Swords to Plowshares
4 copies - 4 average
True-Name Nemesis
4 copies - 4 average
Force of Will
4 copies - 4 average
Nimble Mongoose
4 copies - 4 average
Tundra
4 copies - 4 average
Flooded Strand
4 copies - 4 average
Stoneforge Mystic
3 copies - 3 average
Misty Rainforest
3 copies - 3 average
Tropical Island
3 copies - 3 average
Geist of Saint Traft
3 copies - 3 average
Phantasmal Image
3 copies - 3 average
Rest in Peace
2 copies - 2 average
Return to Nature
2 copies - 2 average
Phyrexian Revoker
2 copies - 2 average
Meddling Mage
2 copies - 2 average