Most played cards in Thrun, the Last Troll:

3 Decks
Snow-Covered Forest
21 copies - 7 average
Wild Growth
3 copies - 1 average
Llanowar Elves
3 copies - 1 average
Dryad Arbor
3 copies - 1 average
Wasteland
3 copies - 1 average
Utopia Sprawl
3 copies - 1 average
Hall of Gemstone
3 copies - 1 average
Green Sun's Zenith
3 copies - 1 average
Beast Within
3 copies - 1 average
Sword of Feast and Famine
3 copies - 1 average
Sword of Fire and Ice
3 copies - 1 average
Umezawa's Jitte
3 copies - 1 average
Tectonic Edge
3 copies - 1 average
Fyndhorn Elves
3 copies - 1 average
Boreal Druid
3 copies - 1 average
Birds of Paradise
3 copies - 1 average
Elvish Mystic
3 copies - 1 average
Arbor Elf
3 copies - 1 average
Rancor
2 copies - 0.67 average
Pithing Needle
2 copies - 0.67 average