Most played cards in 4c Loam:

1 Decks
Dark Confidant
4 copies – 4 avg
Chalice of the Void
4 copies – 4 avg
Wasteland
4 copies – 4 avg
Mox Diamond
4 copies – 4 avg
Knight of the Reliquary
3 copies – 3 avg
Leyline of the Void
3 copies – 3 avg
Verdant Catacombs
3 copies – 3 avg
Abrupt Decay
3 copies – 3 avg
Bayou
2 copies – 2 avg
Assassin's Trophy
2 copies – 2 avg
Green Sun's Zenith
2 copies – 2 avg
Windswept Heath
2 copies – 2 avg
Life from the Loam
2 copies – 2 avg
Plague Engineer
2 copies – 2 avg
Liliana of the Veil
2 copies – 2 avg
Sylvan Library
2 copies – 2 avg
Meddling Mage
2 copies – 2 avg
Swords to Plowshares
2 copies – 2 avg
Thalia, Guardian of Thraben
2 copies – 2 avg
Collector Ouphe
1 copies – 1 avg