Most played cards in Stiflenought:

3 Decks
Stifle
12 copies - 4 average
Brainstorm
12 copies - 4 average
Phyrexian Dreadnought
12 copies - 4 average
Ponder
12 copies - 4 average
Wasteland
12 copies - 4 average
Dress Down
12 copies - 4 average
Misty Rainforest
12 copies - 4 average
Force of Will
12 copies - 4 average
Uro, Titan of Nature's Wrath
9 copies - 3 average
Tropical Island
9 copies - 3 average
Flooded Strand
8 copies - 2.67 average
Swords to Plowshares
8 copies - 2.67 average
Collector Ouphe
8 copies - 2.67 average
Surgical Extraction
6 copies - 2 average
Hydroblast
6 copies - 2 average
Strict Proctor
6 copies - 2 average
Tundra
6 copies - 2 average
Carpet of Flowers
6 copies - 2 average
Force of Negation
5 copies - 1.67 average
Daze
4 copies - 1.33 average