Most played cards in Sligh:

1 Decks
Urza's Bauble
4 copies - 4 average
Jackal Pup
4 copies - 4 average
Bloodstained Mire
4 copies - 4 average
Price of Progress
4 copies - 4 average
Wooded Foothills
4 copies - 4 average
Fireblast
4 copies - 4 average
Incinerate
4 copies - 4 average
Grim Lavamancer
4 copies - 4 average
Mogg Fanatic
4 copies - 4 average
Shock
4 copies - 4 average
Lightning Bolt
4 copies - 4 average
Lava Dart
4 copies - 4 average
Overload
3 copies - 3 average
Ball Lightning
3 copies - 3 average
Red Elemental Blast
2 copies - 2 average
Sulfuric Vortex
2 copies - 2 average
Cursed Scroll
2 copies - 2 average
Barbarian Ring
2 copies - 2 average
Pyroblast
2 copies - 2 average
Flaring Pain
1 copies - 1 average