Most played cards in Sligh:

1 Decks
Fireball
4 copies - 4 average
Blood Moon
4 copies - 4 average
Mishra's Factory
4 copies - 4 average
Lightning Bolt
4 copies - 4 average
Su-Chi
4 copies - 4 average
Red Elemental Blast
4 copies - 4 average
Juggernaut
4 copies - 4 average
Nevinyrral's Disk
3 copies - 3 average
Shatter
2 copies - 2 average
City in a Bottle
2 copies - 2 average
Tetravus
2 copies - 2 average
Disintegrate
2 copies - 2 average
Fellwar Stone
2 copies - 2 average
Mana Vault
1 copies - 1 average
Sol Ring
1 copies - 1 average
Diamond Valley
1 copies - 1 average
Strip Mine
1 copies - 1 average
Mox Emerald
1 copies - 1 average
Maze of Ith
1 copies - 1 average
Active Volcano
1 copies - 1 average