Most played cards in Tron:

6 Decks
 ↓ Planar Nexus
24 copies – 4 avg
↓ Urza's Tower
24 copies – 4 avg
↓ Kozilek's Command
24 copies – 4 avg
↓ The One Ring
24 copies – 4 avg
↓ Karn, the Great Creator
21 copies – 3.5 avg
↓ Grim Monolith
19 copies – 3.17 avg
↓ Urza's Mine
15 copies – 2.5 avg
↓ Urza's Power Plant
15 copies – 2.5 avg
↓ Urza's Saga
15 copies – 2.5 avg
↓ Ugin, Eye of the Storms
15 copies – 2.5 avg
↓ Trinisphere
13 copies – 2.17 avg
↓ Urza's Workshop
12 copies – 2 avg
↓ Disruptor Flute
11 copies – 1.83 avg
↓ Leyline of the Void
11 copies – 1.83 avg
↓ Ancient Tomb
10 copies – 1.67 avg
↓ Manifold Key
9 copies – 1.5 avg
↓ Eldrazi Confluence
9 copies – 1.5 avg
↓ Candelabra of Tawnos
8 copies – 1.33 avg
↓ Petrified Hamlet
8 copies – 1.33 avg
↓ Force of Will
8 copies – 1.33 avg