Most played cards in Orzhov:

2 Decks
Hypnotic Specter
8 copies - 4 average
Dark Ritual
8 copies - 4 average
Swords to Plowshares
8 copies - 4 average
Underworld Dreams
8 copies - 4 average
Mishra's Factory
8 copies - 4 average
Scrubland
8 copies - 4 average
Sinkhole
8 copies - 4 average
Black Knight
7 copies - 3.5 average
Disenchant
7 copies - 3.5 average
Terror
6 copies - 3 average
Nevinyrral's Disk
6 copies - 3 average
Circle of Protection: Red
4 copies - 2 average
Hymn to Tourach
4 copies - 2 average
Sengir Vampire
4 copies - 2 average
Juzam Djinn
4 copies - 2 average
Serra Angel
3 copies - 1.5 average
Gloom
3 copies - 1.5 average
Greed
3 copies - 1.5 average
Sol Ring
2 copies - 1 average
Disrupting Scepter
2 copies - 1 average