Most played cards in Loam:

1 Decks
Abrupt Decay
4 copies - 4 average
Wasteland
4 copies - 4 average
Knight of the Reliquary
4 copies - 4 average
Dark Confidant
4 copies - 4 average
Verdant Catacombs
4 copies - 4 average
Mox Diamond
4 copies - 4 average
Chalice of the Void
4 copies - 4 average
Leyline of the Void
4 copies - 4 average
Swords to Plowshares
2 copies - 2 average
Windswept Heath
2 copies - 2 average
Thalia, Guardian of Thraben
2 copies - 2 average
Meddling Mage
2 copies - 2 average
Plague Engineer
2 copies - 2 average
Life from the Loam
2 copies - 2 average
Green Sun's Zenith
2 copies - 2 average
Sylvan Library
2 copies - 2 average
Leovold, Emissary of Trest
2 copies - 2 average
Bayou
2 copies - 2 average
Containment Priest
1 copies - 1 average
Assassin's Trophy
1 copies - 1 average