Most played cards in Kroxa, Titan of Death´s Hunger:

4 Decks
Snow-Covered Swamp
8 copies - 2 average
Toxic Deluge
4 copies - 1 average
Wooded Foothills
4 copies - 1 average
Demonic Tutor
4 copies - 1 average
Blood Moon
4 copies - 1 average
Thoughtseize
4 copies - 1 average
Liliana of the Veil
4 copies - 1 average
Flame Slash
4 copies - 1 average
Seasoned Pyromancer
4 copies - 1 average
Kolaghan's Command
4 copies - 1 average
Chain Lightning
4 copies - 1 average
Inquisition of Kozilek
4 copies - 1 average
Lightning Bolt
4 copies - 1 average
Mind Twist
4 copies - 1 average
Terminate
4 copies - 1 average
Hymn to Tourach
4 copies - 1 average
Dreadbore
4 copies - 1 average
Urborg, Tomb of Yawgmoth
4 copies - 1 average
Command Tower
4 copies - 1 average
Dragonskull Summit
4 copies - 1 average