Most played cards in UR Aggro:

1 Decks
Lightning Bolt
4 copies - 4 average
Force of Will
4 copies - 4 average
Price of Progress
4 copies - 4 average
Delver of Secrets
4 copies - 4 average
Wasteland
4 copies - 4 average
Brainstorm
4 copies - 4 average
Daze
4 copies - 4 average
Ponder
4 copies - 4 average
Young Pyromancer
4 copies - 4 average
Gitaxian Probe
4 copies - 4 average
Scalding Tarn
3 copies - 3 average
Pyroblast
3 copies - 3 average
Polluted Delta
3 copies - 3 average
Surgical Extraction
3 copies - 3 average
Volcanic Island
3 copies - 3 average
Smash to Smithereens
3 copies - 3 average
Vapor Snag
2 copies - 2 average
Flusterstorm
2 copies - 2 average
Spell Pierce
2 copies - 2 average
Snapcaster Mage
2 copies - 2 average