Most played cards in B/R Vampires:

1 Decks
Stromkirk Occultist
4 copies - 4 average
Lightning Axe
4 copies - 4 average
Stromkirk Condemned
4 copies - 4 average
Foreboding Ruins
4 copies - 4 average
Fiery Temper
4 copies - 4 average
Falkenrath Gorger
4 copies - 4 average
Smoldering Marsh
4 copies - 4 average
Duress
3 copies - 3 average
Olivia, Mobilized for War
3 copies - 3 average
Bloodhall Priest
3 copies - 3 average
Olivia's Dragoon
3 copies - 3 average
Collective Brutality
2 copies - 2 average
Kalitas, Traitor of Ghet
2 copies - 2 average
Ruinous Path
2 copies - 2 average
Transgress the Mind
2 copies - 2 average
Ultimate Price
2 copies - 2 average
Cinder Barrens
2 copies - 2 average
Liliana, the Last Hope
2 copies - 2 average
Rending Volley
2 copies - 2 average
Asylum Visitor
2 copies - 2 average