Most played cards in UR Fish:

1 Decks
Grim Lavamancer
4 copies - 4 average
Cloud of Faeries
4 copies - 4 average
Force of Will
4 copies - 4 average
Volcanic Island
4 copies - 4 average
Mishra's Factory
4 copies - 4 average
Spiketail Hatchling
4 copies - 4 average
Wasteland
4 copies - 4 average
Curiosity
4 copies - 4 average
Standstill
4 copies - 4 average
Flooded Strand
3 copies - 3 average
Rack and Ruin
3 copies - 3 average
Fire // Ice
3 copies - 3 average
Null Rod
3 copies - 3 average
Daze
2 copies - 2 average
Voidmage Prodigy
2 copies - 2 average
Red Elemental Blast
2 copies - 2 average
Maze of Ith
2 copies - 2 average
Stifle
2 copies - 2 average
Polluted Delta
2 copies - 2 average
Faerie Conclave
2 copies - 2 average