Most played cards in U/G/x Control:

1 Decks
Sakura-Tribe Elder
4 copies - 4 average
Oxidize
4 copies - 4 average
Mana Leak
4 copies - 4 average
Eternal Witness
4 copies - 4 average
Bribery
3 copies - 3 average
Viridian Shaman
3 copies - 3 average
Troll Ascetic
3 copies - 3 average
Solemn Simulacrum
3 copies - 3 average
Relic Barrier
3 copies - 3 average
Hinder
3 copies - 3 average
Serum Visions
3 copies - 3 average
Cranial Extraction
3 copies - 3 average
Condescend
3 copies - 3 average
Rude Awakening
2 copies - 2 average
Sensei's Divining Top
2 copies - 2 average
Meloku the Clouded Mirror
2 copies - 2 average
Echoing Truth
2 copies - 2 average
Minamo, School at Water's Edge
1 copies - 1 average
Last Word
1 copies - 1 average
Okina, Temple to the Grandfathers
1 copies - 1 average