Most played cards in Yorion Zenith:

2 Decks
Prismatic Vista
8 copies - 4 average
Abundant Growth
8 copies - 4 average
Brainstorm
8 copies - 4 average
Force of Will
8 copies - 4 average
Misty Rainforest
8 copies - 4 average
Swords to Plowshares
8 copies - 4 average
Green Sun's Zenith
8 copies - 4 average
Prismatic Ending
8 copies - 4 average
Ice-Fang Coatl
8 copies - 4 average
Ponder
8 copies - 4 average
Windswept Heath
8 copies - 4 average
Uro, Titan of Nature's Wrath
6 copies - 3 average
Wasteland
6 copies - 3 average
Endurance
5 copies - 2.5 average
Force of Negation
5 copies - 2.5 average
Plague Engineer
5 copies - 2.5 average
Flusterstorm
4 copies - 2 average
Pyroblast
4 copies - 2 average
Carpet of Flowers
3 copies - 1.5 average
Tropical Island
3 copies - 1.5 average