Most played cards in B/W Control:

3 Decks
Duress
12 copies - 4 average
Vindicate
10 copies - 3.33 average
Wrath of God
8 copies - 2.67 average
Caves of Koilos
8 copies - 2.67 average
Smother
8 copies - 2.67 average
Disenchant
7 copies - 2.33 average
Cabal Therapy
7 copies - 2.33 average
Chainer's Edict
7 copies - 2.33 average
Decree of Justice
6 copies - 2 average
Gerrard's Verdict
6 copies - 2 average
Exalted Angel
6 copies - 2 average
Haunting Echoes
5 copies - 1.67 average
5 copies - 1.67 average
Eternal Dragon
5 copies - 1.67 average
Orim's Chant
4 copies - 1.33 average
Cabal Coffers
4 copies - 1.33 average
Mutilate
4 copies - 1.33 average
Distress
4 copies - 1.33 average
Renewed Faith
3 copies - 1 average
Paladin en-Vec
3 copies - 1 average