Most played cards in G/U Crush:

2 Decks
Lumbering Falls
8 copies - 4 average
Anticipate
8 copies - 4 average
Explosive Vegetation
8 copies - 4 average
Nissa's Pilgrimage
8 copies - 4 average
Sylvan Advocate
8 copies - 4 average
Den Protector
7 copies - 3.5 average
Part the Waterveil
7 copies - 3.5 average
Jaddi Offshoot
7 copies - 3.5 average
Crush of Tentacles
7 copies - 3.5 average
Pieces of the Puzzle
6 copies - 3 average
Dispel
4 copies - 2 average
Nissa's Renewal
4 copies - 2 average
Jace, Unraveler of Secrets
3 copies - 1.5 average
Ulamog, the Ceaseless Hunger
3 copies - 1.5 average
Gnarlwood Dryad
3 copies - 1.5 average
Aerial Volley
3 copies - 1.5 average
Yavimaya Coast
3 copies - 1.5 average
Spell Shrivel
2 copies - 1 average
Summary Dismissal
2 copies - 1 average
Pulse of Murasa
2 copies - 1 average