Most played cards in Karador, Ghost Chieftain:

4 Decks
Avacyn's Pilgrim
4 copies - 1 average
Demonic Tutor
4 copies - 1 average
Birds of Paradise
4 copies - 1 average
Deathrite Shaman
4 copies - 1 average
Courser of Kruphix
4 copies - 1 average
Diabolic Intent
4 copies - 1 average
Eladamri's Call
4 copies - 1 average
Verdant Catacombs
4 copies - 1 average
Urborg, Tomb of Yawgmoth
4 copies - 1 average
Windswept Heath
4 copies - 1 average
Wooded Foothills
4 copies - 1 average
Woodland Cemetery
4 copies - 1 average
Elves of Deep Shadow
4 copies - 1 average
Eternal Witness
4 copies - 1 average
Siege Rhino
4 copies - 1 average
Arid Mesa
4 copies - 1 average
Qasali Pridemage
4 copies - 1 average
Scavenging Ooze
4 copies - 1 average
Saffi Eriksdotter
4 copies - 1 average
Llanowar Elves
4 copies - 1 average