Most played cards in Riddlesmith Combo:

2 Decks
Riddlesmith
8 copies - 4 average
Containment Construct
8 copies - 4 average
Ancient Tomb
8 copies - 4 average
Gamble
8 copies - 4 average
Echo of Eons
8 copies - 4 average
Urza's Bauble
8 copies - 4 average
Chrome Mox
8 copies - 4 average
Lion's Eye Diamond
8 copies - 4 average
Defense Grid
8 copies - 4 average
Lotus Petal
8 copies - 4 average
Mishra's Bauble
8 copies - 4 average
Mox Opal
8 copies - 4 average
Urza's Saga
8 copies - 4 average
Thrasta, Tempest's Roar
6 copies - 3 average
Breakthrough
6 copies - 3 average
Karn, the Great Creator
4 copies - 2 average
Chain of Vapor
2 copies - 1 average
Pithing Needle
2 copies - 1 average
Mindbreak Trap
2 copies - 1 average
Silence
2 copies - 1 average