Most played cards in UWR Aggro:

3 Decks
Disenchant
12 copies - 4 average
Savannah Lions
12 copies - 4 average
Chain Lightning
12 copies - 4 average
Lightning Bolt
12 copies - 4 average
Serendib Efreet
12 copies - 4 average
Tundra
11 copies - 3.67 average
Psionic Blast
11 copies - 3.67 average
Volcanic Island
10 copies - 3.33 average
Plateau
8 copies - 2.67 average
Mishra's Factory
8 copies - 2.67 average
Black Vise
8 copies - 2.67 average
City of Brass
7 copies - 2.33 average
Red Elemental Blast
6 copies - 2 average
Swords to Plowshares
5 copies - 1.67 average
Psychic Purge
4 copies - 1.33 average
Flying Men
4 copies - 1.33 average
Spirit Link
4 copies - 1.33 average
Control Magic
3 copies - 1 average
Divine Offering
3 copies - 1 average
Strip Mine
3 copies - 1 average