Most played cards in RUG Tron:

1 Decks
Urza's Mine
4 copies - 4 average
Swiftwater Cliffs
4 copies - 4 average
Shimmering Grotto
4 copies - 4 average
Prophetic Prism
4 copies - 4 average
Urza's Power Plant
4 copies - 4 average
Urza's Tower
4 copies - 4 average
Mulldrifter
4 copies - 4 average
Pyroblast
4 copies - 4 average
Hydroblast
3 copies - 3 average
Moment's Peace
3 copies - 3 average
Prohibit
3 copies - 3 average
Sea Gate Oracle
3 copies - 3 average
False Summoning
3 copies - 3 average
Expedition Map
2 copies - 2 average
Ancient Grudge
2 copies - 2 average
Snow-Covered Island
2 copies - 2 average
Dispel
2 copies - 2 average
Flame Slash
2 copies - 2 average
Mnemonic Wall
2 copies - 2 average
Mystical Teachings
2 copies - 2 average