Most played cards in Sneak Attack:

1 Decks
Scalding Tarn
4 copies - 4 average
Sneak Attack
4 copies - 4 average
Lotus Petal
4 copies - 4 average
Flooded Strand
4 copies - 4 average
Show and Tell
4 copies - 4 average
Preordain
4 copies - 4 average
Griselbrand
4 copies - 4 average
Brainstorm
4 copies - 4 average
Daze
4 copies - 4 average
Ponder
4 copies - 4 average
Force of Will
4 copies - 4 average
Volcanic Island
3 copies - 3 average
Emrakul, the Aeons Torn
3 copies - 3 average
Ancient Tomb
3 copies - 3 average
Flusterstorm
2 copies - 2 average
Pyroclasm
2 copies - 2 average
Blood Moon
2 copies - 2 average
Surgical Extraction
2 copies - 2 average
Arcane Artisan
2 copies - 2 average
Omniscience
2 copies - 2 average