Most played cards in Death Shadow:

3 Decks
Daze
12 copies - 4 average
Ponder
12 copies - 4 average
Brainstorm
12 copies - 4 average
Death's Shadow
12 copies - 4 average
Thoughtseize
12 copies - 4 average
Force of Will
12 copies - 4 average
Wasteland
10 copies - 3.33 average
Street Wraith
8 copies - 2.67 average
Flooded Strand
8 copies - 2.67 average
Baleful Strix
8 copies - 2.67 average
Murktide Regent
8 copies - 2.67 average
Polluted Delta
8 copies - 2.67 average
Watery Grave
8 copies - 2.67 average
Snuff Out
8 copies - 2.67 average
Misty Rainforest
6 copies - 2 average
Hymn to Tourach
6 copies - 2 average
Surgical Extraction
6 copies - 2 average
Brazen Borrower
5 copies - 1.67 average
Underground Sea
5 copies - 1.67 average
Fatal Push
4 copies - 1.33 average