Most played cards in Kalitas, Traitor of Ghet:

2 Decks
Snow-Covered Swamp
34 copies - 17 average
Go for the Throat
2 copies - 1 average
Innocent Blood
2 copies - 1 average
Fatal Push
2 copies - 1 average
Hero's Downfall
2 copies - 1 average
Dismember
2 copies - 1 average
Dark Ritual
2 copies - 1 average
Demonic Tutor
2 copies - 1 average
Inquisition of Kozilek
2 copies - 1 average
Sign in Blood
2 copies - 1 average
Expedition Map
2 copies - 1 average
Bojuka Bog
2 copies - 1 average
Yahenni's Expertise
2 copies - 1 average
Toxic Deluge
2 copies - 1 average
Damnation
2 copies - 1 average
Thoughtseize
2 copies - 1 average
Night's Whisper
2 copies - 1 average
Hymn to Tourach
2 copies - 1 average
Bile Blight
2 copies - 1 average
Phyrexian Obliterator
2 copies - 1 average