Most played cards in Tron:

3 Decks
 ↓ Urza's Tower
12 copies – 4 avg
↓ Expedition Map
12 copies – 4 avg
↓ Urza's Power Plant
12 copies – 4 avg
↓ Urza's Mine
12 copies – 4 avg
↓ Ancient Stirrings
8 copies – 2.67 avg
↓ Sylvan Scrying
8 copies – 2.67 avg
↓ Chromatic Sphere
8 copies – 2.67 avg
↓ Wurmcoil Engine
8 copies – 2.67 avg
↓ Thought-Knot Seer
8 copies – 2.67 avg
↓ Karn Liberated
8 copies – 2.67 avg
↓ Relic of Progenitus
8 copies – 2.67 avg
↓ Chromatic Star
8 copies – 2.67 avg
↓ Dismember
7 copies – 2.33 avg
↓ Oblivion Stone
7 copies – 2.33 avg
↓ Nature's Claim
7 copies – 2.33 avg
↓ Thragtusk
6 copies – 2 avg
↓ Ugin, the Spirit Dragon
5 copies – 1.67 avg
↓ Surgical Extraction
5 copies – 1.67 avg
↓ Remand
4 copies – 1.33 avg
↓ Ulamog, the Ceaseless Hunger
4 copies – 1.33 avg