Most played cards in Depths Reanimator:

2 Decks
Entomb
8 copies - 4 average
Dark Ritual
8 copies - 4 average
Lotus Petal
8 copies - 4 average
Vampire Hexmage
8 copies - 4 average
Dark Depths
8 copies - 4 average
Thoughtseize
8 copies - 4 average
Exhume
8 copies - 4 average
Leyline of the Void
8 copies - 4 average
Beseech the Queen
8 copies - 4 average
Thespian's Stage
8 copies - 4 average
Reanimate
6 copies - 3 average
Not of This World
6 copies - 3 average
Hymn to Tourach
6 copies - 3 average
Urborg, Tomb of Yawgmoth
4 copies - 2 average
Perish
4 copies - 2 average
Ashen Rider
2 copies - 1 average
Duress
2 copies - 1 average
Inkwell Leviathan
2 copies - 1 average
Elesh Norn, Grand Cenobite
2 copies - 1 average
Helm of Obedience
2 copies - 1 average