Most played cards in GW Aggro:

3 Decks
Razorverge Thicket
12 copies - 4 average
Noble Hierarch
12 copies - 4 average
Qasali Pridemage
11 copies - 3.67 average
Path to Exile
10 copies - 3.33 average
Stoneforge Mystic
9 copies - 3 average
Tectonic Edge
9 copies - 3 average
Vengevine
8 copies - 2.67 average
Knight of the Reliquary
8 copies - 2.67 average
Squadron Hawk
8 copies - 2.67 average
Misty Rainforest
8 copies - 2.67 average
Day of Judgment
7 copies - 2.33 average
Birds of Paradise
7 copies - 2.33 average
Fauna Shaman
7 copies - 2.33 average
Stirring Wildwood
6 copies - 2 average
Linvala, Keeper of Silence
5 copies - 1.67 average
Verdant Catacombs
4 copies - 1.33 average
Sunpetal Grove
4 copies - 1.33 average
Oust
4 copies - 1.33 average
Elspeth, Knight-Errant
4 copies - 1.33 average
Great Sable Stag
4 copies - 1.33 average