Most played cards in Patriot:

4 Decks
Disenchant
16 copies - 4 average
Lightning Bolt
16 copies - 4 average
Tundra
15 copies - 3.75 average
Serendib Efreet
15 copies - 3.75 average
Volcanic Island
14 copies - 3.5 average
Plateau
12 copies - 3 average
Savannah Lions
12 copies - 3 average
Red Elemental Blast
11 copies - 2.75 average
Psionic Blast
11 copies - 2.75 average
Chain Lightning
11 copies - 2.75 average
Swords to Plowshares
11 copies - 2.75 average
Mishra's Factory
10 copies - 2.5 average
Su-Chi
10 copies - 2.5 average
City of Brass
10 copies - 2.5 average
Black Vise
8 copies - 2 average
Counterspell
7 copies - 1.75 average
Divine Offering
6 copies - 1.5 average
Blue Elemental Blast
6 copies - 1.5 average
Mox Ruby
4 copies - 1 average
Mox Pearl
4 copies - 1 average