Most played cards in Eldrazi Tron:

1 Decks
Chalice of the Void
4 copies - 4 average
Matter Reshaper
4 copies - 4 average
Reality Smasher
4 copies - 4 average
Thought-Knot Seer
4 copies - 4 average
Expedition Map
4 copies - 4 average
Urza's Tower
4 copies - 4 average
Urza's Mine
4 copies - 4 average
Urza's Power Plant
4 copies - 4 average
Eldrazi Temple
4 copies - 4 average
Walking Ballista
3 copies - 3 average
Warping Wail
3 copies - 3 average
Ghost Quarter
3 copies - 3 average
Grafdigger's Cage
2 copies - 2 average
Karn Liberated
2 copies - 2 average
Spatial Contortion
2 copies - 2 average
Surgical Extraction
2 copies - 2 average
Relic of Progenitus
2 copies - 2 average
Ratchet Bomb
2 copies - 2 average
All Is Dust
2 copies - 2 average
Batterskull
2 copies - 2 average