Most played cards in RW Aggro:

3 Decks
Plateau
12 copies - 4 average
Lightning Bolt
12 copies - 4 average
Savannah Lions
11 copies - 3.67 average
Disenchant
11 copies - 3.67 average
Swords to Plowshares
10 copies - 3.33 average
Red Elemental Blast
9 copies - 3 average
Divine Offering
8 copies - 2.67 average
Chain Lightning
7 copies - 2.33 average
Mishra's Factory
7 copies - 2.33 average
Granite Gargoyle
6 copies - 2 average
Serra Angel
6 copies - 2 average
Scrubland
4 copies - 1.33 average
Black Vise
4 copies - 1.33 average
City in a Bottle
4 copies - 1.33 average
Circle of Protection: Red
4 copies - 1.33 average
Tundra
4 copies - 1.33 average
Badlands
4 copies - 1.33 average
Volcanic Island
4 copies - 1.33 average
Su-Chi
4 copies - 1.33 average
Sedge Troll
4 copies - 1.33 average