Most played cards in Lands:

5 Decks
Wasteland
20 copies - 4 average
Thespian's Stage
20 copies - 4 average
Sphere of Resistance
20 copies - 4 average
Fastbond
20 copies - 4 average
Life from the Loam
19 copies - 3.8 average
Collector Ouphe
17 copies - 3.4 average
Dark Depths
17 copies - 3.4 average
Crop Rotation
17 copies - 3.4 average
Thalia, Guardian of Thraben
16 copies - 3.2 average
Elvish Reclaimer
16 copies - 3.2 average
Ghost Quarter
16 copies - 3.2 average
Exploration
15 copies - 3 average
Tireless Tracker
15 copies - 3 average
Savannah
13 copies - 2.6 average
Force of Vigor
10 copies - 2 average
Windswept Heath
9 copies - 1.8 average
Snow-Covered Forest
8 copies - 1.6 average
Verdant Catacombs
8 copies - 1.6 average
Choke
7 copies - 1.4 average
The Tabernacle at Pendrell Vale
6 copies - 1.2 average