Most played cards in Crashing Footfalls:

1 Decks
Force of Will
4 copies - 4 average
Force of Negation
4 copies - 4 average
Violent Outburst
4 copies - 4 average
Scalding Tarn
4 copies - 4 average
Endurance
4 copies - 4 average
Crashing Footfalls
4 copies - 4 average
Misty Rainforest
4 copies - 4 average
Elvish Spirit Guide
4 copies - 4 average
Shardless Agent
4 copies - 4 average
Brazen Borrower
4 copies - 4 average
Simian Spirit Guide
4 copies - 4 average
Force of Vigor
3 copies - 3 average
Fire // Ice
3 copies - 3 average
Wooded Foothills
3 copies - 3 average
Blood Moon
3 copies - 3 average
Volcanic Island
2 copies - 2 average
Fury
2 copies - 2 average
Tropical Island
2 copies - 2 average
Snow-Covered Island
2 copies - 2 average
Bonecrusher Giant
2 copies - 2 average