Most played cards in UR Aggro:

1 Decks
Brainstorm
4 copies - 4 average
Ponder
4 copies - 4 average
Daze
4 copies - 4 average
Force of Will
4 copies - 4 average
Misty Rainforest
4 copies - 4 average
Lightning Bolt
4 copies - 4 average
Gitaxian Probe
4 copies - 4 average
Flooded Strand
4 copies - 4 average
Monastery Swiftspear
4 copies - 4 average
Chain Lightning
4 copies - 4 average
Delver of Secrets
4 copies - 4 average
Price of Progress
3 copies - 3 average
Volcanic Island
3 copies - 3 average
Pyroblast
2 copies - 2 average
Stormchaser Mage
2 copies - 2 average
Smash to Smithereens
2 copies - 2 average
Sulfuric Vortex
2 copies - 2 average
Surgical Extraction
2 copies - 2 average
Wasteland
2 copies - 2 average
Flusterstorm
2 copies - 2 average