Most played cards in Survival Infestation:

1 Decks
Cabal Therapy
4 copies - 4 average
Basking Rootwalla
4 copies - 4 average
Survival of the Fittest
4 copies - 4 average
Llanowar Wastes
4 copies - 4 average
Zombie Infestation
4 copies - 4 average
Wild Mongrel
4 copies - 4 average
Naturalize
3 copies - 3 average
City of Brass
3 copies - 3 average
Wooded Foothills
3 copies - 3 average
Arrogant Wurm
3 copies - 3 average
Squee, Goblin Nabob
3 copies - 3 average
Krovikan Horror
3 copies - 3 average
Tormod's Crypt
2 copies - 2 average
Bloodstained Mire
2 copies - 2 average
Vendetta
2 copies - 2 average
Engineered Plague
2 copies - 2 average
Buried Alive
2 copies - 2 average
Cursed Totem
2 copies - 2 average
Firestorm
2 copies - 2 average
Genesis
1 copies - 1 average