Most played cards in Reanimator:

3 Decks
Polluted Delta
12 copies - 4 average
Exhume
12 copies - 4 average
Careful Study
12 copies - 4 average
Underground Sea
11 copies - 3.67 average
Reanimate
10 copies - 3.33 average
Dark Ritual
10 copies - 3.33 average
Pyroblast
8 copies - 2.67 average
Overload
8 copies - 2.67 average
Sickening Dreams
8 copies - 2.67 average
Bazaar of Baghdad
8 copies - 2.67 average
Animate Dead
6 copies - 2 average
Defense Grid
6 copies - 2 average
Squee, Goblin Nabob
6 copies - 2 average
Badlands
6 copies - 2 average
Buried Alive
6 copies - 2 average
Entomb
4 copies - 1.33 average
Duress
4 copies - 1.33 average
Bladewing the Risen
4 copies - 1.33 average
Dragon Mage
4 copies - 1.33 average
Unmask
4 copies - 1.33 average