Most played cards in Clerics:

32 Decks
Rotlung Reanimator
84 copies - 2.63 average
Swords to Plowshares
67 copies - 2.09 average
Dark Ritual
61 copies - 1.91 average
Duress
61 copies - 1.91 average
True Believer
60 copies - 1.88 average
Cabal Archon
60 copies - 1.88 average
Priest of Gix
60 copies - 1.88 average
Withered Wretch
59 copies - 1.84 average
Dark Supplicant
59 copies - 1.84 average
Mother of Runes
59 copies - 1.84 average
Master Apothecary
57 copies - 1.78 average
Weathered Wayfarer
55 copies - 1.72 average
Cabal Therapy
53 copies - 1.66 average
Wasteland
51 copies - 1.59 average
Beloved Chaplain
47 copies - 1.47 average
Engineered Plague
47 copies - 1.47 average
Abolish
38 copies - 1.19 average
Unearth
36 copies - 1.13 average
Armageddon
36 copies - 1.13 average
Tormod's Crypt
32 copies - 1 average