Most played cards in Rakdos Scam:

3 Decks
Stalactite Stalker
4 copies - 1.33 average
Reanimate
4 copies - 1.33 average
Troll of Khazad-dûm
4 copies - 1.33 average
Wasteland
4 copies - 1.33 average
Grief
4 copies - 1.33 average
Orcish Bowmasters
4 copies - 1.33 average
Bloodstained Mire
4 copies - 1.33 average
Dauthi Voidwalker
4 copies - 1.33 average
Fury
3 copies - 1 average
Verdant Catacombs
3 copies - 1 average
Pyroblast
3 copies - 1 average
Magus of the Moon
3 copies - 1 average
Sheoldred's Edict
3 copies - 1 average
Broadside Bombardiers
3 copies - 1 average
Fable of the Mirror-Breaker
3 copies - 1 average
Opposition Agent
2 copies - 0.67 average
Sheoldred, the Apocalypse
2 copies - 0.67 average
Thoughtseize
2 copies - 0.67 average
Meltdown
2 copies - 0.67 average
Lightning Bolt
2 copies - 0.67 average