Most played cards in Oracle Combo:

1 Decks
Preordain
4 copies – 4 avg
Cavern of Souls
4 copies – 4 avg
Thought Lash
4 copies – 4 avg
Impulse
4 copies – 4 avg
Paradigm Shift
4 copies – 4 avg
Force of Will
4 copies – 4 avg
Lotus Petal
4 copies – 4 avg
Ancient Tomb
4 copies – 4 avg
Thassa's Oracle
4 copies – 4 avg
Stifle
3 copies – 3 avg
Step Through
3 copies – 3 avg
Consign to Memory
3 copies – 3 avg
Otawara, Soaring City
2 copies – 2 avg
Lórien Revealed
2 copies – 2 avg
The One Ring
2 copies – 2 avg
Defense Grid
2 copies – 2 avg
Brazen Borrower
2 copies – 2 avg
Force of Negation
2 copies – 2 avg
Misdirection
2 copies – 2 avg
Sink into Stupor
1 copies – 1 avg