Most played cards in Pattern:

5 Decks
Birds of Paradise
20 copies - 4 average
Pattern of Rebirth
20 copies - 4 average
Academy Rector
17 copies - 3.4 average
Phyrexian Ghoul
15 copies - 3 average
Nantuko Husk
15 copies - 3 average
Cabal Therapy
14 copies - 2.8 average
Windswept Heath
13 copies - 2.6 average
Duress
12 copies - 2.4 average
Llanowar Elves
11 copies - 2.2 average
Bayou
10 copies - 2 average
Ancient Tomb
10 copies - 2 average
Pernicious Deed
9 copies - 1.8 average
Savannah
9 copies - 1.8 average
Chalice of the Void
8 copies - 1.6 average
Leyline of the Void
8 copies - 1.6 average
Wall of Roots
8 copies - 1.6 average
Swords to Plowshares
8 copies - 1.6 average
City of Brass
8 copies - 1.6 average
Krosan Grip
7 copies - 1.4 average
City of Solitude
7 copies - 1.4 average