Most played cards in Rakdos:

1 Decks
Badlands
4 copies - 4 average
Howling Mine
4 copies - 4 average
Sinkhole
4 copies - 4 average
Dark Ritual
4 copies - 4 average
Mishra's Factory
4 copies - 4 average
Underworld Dreams
4 copies - 4 average
Winds of Change
3 copies - 3 average
Drain Life
3 copies - 3 average
Relic Barrier
3 copies - 3 average
Gloom
3 copies - 3 average
Icy Manipulator
3 copies - 3 average
Blood Moon
3 copies - 3 average
City of Brass
2 copies - 2 average
Artifact Possession
2 copies - 2 average
Pestilence
2 copies - 2 average
Red Elemental Blast
2 copies - 2 average
Stone Rain
2 copies - 2 average
Maze of Ith
1 copies - 1 average
Winter Orb
1 copies - 1 average
Forcefield
1 copies - 1 average