Most played cards in Judith, the Scourge Diva:

4 Decks
Snow-Covered Mountain
7 copies - 1.75 average
Snow-Covered Swamp
6 copies - 1.5 average
Bloodsoaked Champion
4 copies - 1 average
Chain Lightning
4 copies - 1 average
Bloodghast
4 copies - 1 average
Wooded Foothills
4 copies - 1 average
Badlands
4 copies - 1 average
Verdant Catacombs
4 copies - 1 average
Zurgo Bellstriker
4 copies - 1 average
Fatal Push
4 copies - 1 average
Stromkirk Noble
4 copies - 1 average
Goblin Guide
4 copies - 1 average
Gutterbones
4 copies - 1 average
Loyal Apprentice
4 copies - 1 average
Rakdos Cackler
4 copies - 1 average
Scrapheap Scrounger
4 copies - 1 average
Lightning Bolt
4 copies - 1 average
Falkenrath Aristocrat
4 copies - 1 average
Dread Wanderer
4 copies - 1 average
Kari Zev, Skyship Raider
4 copies - 1 average