Most played cards in U/G Crush:

2 Decks
Crush of Tentacles
8 copies - 4 average
Den Protector
8 copies - 4 average
Jaddi Offshoot
8 copies - 4 average
Nissa's Pilgrimage
8 copies - 4 average
Lumbering Falls
8 copies - 4 average
Explosive Vegetation
8 copies - 4 average
Elvish Visionary
8 copies - 4 average
Anticipate
7 copies - 3.5 average
Part the Waterveil
7 copies - 3.5 average
Noose Constrictor
6 copies - 3 average
Summary Dismissal
4 copies - 2 average
Pieces of the Puzzle
4 copies - 2 average
Send to Sleep
3 copies - 1.5 average
Nissa, Vastwood Seer
3 copies - 1.5 average
Clip Wings
3 copies - 1.5 average
Oath of Nissa
3 copies - 1.5 average
Dispel
2 copies - 1 average
Void Shatter
2 copies - 1 average
Learn from the Past
2 copies - 1 average
Skyline Cascade
2 copies - 1 average