Most played cards in UB Scam:

1 Decks
Troll of Khazad-Dûm
4 copies - 4 average
Wasteland
4 copies - 4 average
Underground Sea
4 copies - 4 average
Orcish Bowmasters
4 copies - 4 average
Grief
4 copies - 4 average
Force of Will
4 copies - 4 average
Brainstorm
4 copies - 4 average
Polluted Delta
4 copies - 4 average
Reanimate
4 copies - 4 average
Ponder
4 copies - 4 average
Daze
3 copies - 3 average
Murktide Regent
3 copies - 3 average
Dress Down
2 copies - 2 average
Surgical Extraction
2 copies - 2 average
Hydroblast
2 copies - 2 average
Force of Negation
2 copies - 2 average
Sauron's Ransom
2 copies - 2 average
Lórien Revealed
2 copies - 2 average
Fatal Push
2 copies - 2 average
Brazen Borrower
2 copies - 2 average