Most played cards in Karn Echoes:

3 Decks
 ↓ Ancient Tomb
12 copies – 4 avg
↓ Mox Opal
12 copies – 4 avg
↓ Echo of Eons
12 copies – 4 avg
↓ Lion's Eye Diamond
12 copies – 4 avg
↓ Lotus Petal
12 copies – 4 avg
↓ Urza's Saga
8 copies – 2.67 avg
↓ City of Traitors
8 copies – 2.67 avg
↓ Voltaic Key
8 copies – 2.67 avg
↓ Basalt Monolith
8 copies – 2.67 avg
↓ Defense Grid
8 copies – 2.67 avg
↓ Grim Monolith
8 copies – 2.67 avg
↓ Karn, the Great Creator
8 copies – 2.67 avg
↓ Mystic Forge
8 copies – 2.67 avg
↓ Mesmeric Orb
8 copies – 2.67 avg
↓ Karn, Scion of Urza
7 copies – 2.33 avg
↓ Tormod's Crypt
6 copies – 2 avg
↓ Walking Ballista
6 copies – 2 avg
↓ Crystal Vein
6 copies – 2 avg
↓ Inventors' Fair
5 copies – 1.67 avg
↓ Manifold Key
4 copies – 1.33 avg