Most played cards in 4C Goodstuff:

1 Decks
Disenchant
4 copies - 4 average
Lightning Bolt
4 copies - 4 average
Sinkhole
4 copies - 4 average
Badlands
4 copies - 4 average
Serendib Efreet
4 copies - 4 average
Tundra
4 copies - 4 average
Hypnotic Specter
4 copies - 4 average
Underground Sea
4 copies - 4 average
City of Brass
3 copies - 3 average
Scrubland
3 copies - 3 average
Blue Elemental Blast
3 copies - 3 average
Energy Flux
3 copies - 3 average
Sedge Troll
3 copies - 3 average
Swords to Plowshares
3 copies - 3 average
Underworld Dreams
3 copies - 3 average
Red Elemental Blast
3 copies - 3 average
Sengir Vampire
2 copies - 2 average
Control Magic
2 copies - 2 average
Earthquake
2 copies - 2 average
Plateau
2 copies - 2 average