Most played cards in Rites:

1 Decks
Reflector Mage
4 copies - 4 average
Evolving Wilds
4 copies - 4 average
Yavimaya Coast
4 copies - 4 average
Negate
4 copies - 4 average
Transgress the Mind
4 copies - 4 average
Eldrazi Displacer
4 copies - 4 average
Loam Dryad
4 copies - 4 average
Collected Company
4 copies - 4 average
Llanowar Wastes
3 copies - 3 average
Catacomb Sifter
3 copies - 3 average
Duskwatch Recruiter
3 copies - 3 average
Elvish Visionary
3 copies - 3 average
Zulaport Cutthroat
3 copies - 3 average
Cryptolith Rite
3 copies - 3 average
Caves of Koilos
2 copies - 2 average
Westvale Abbey
2 copies - 2 average
Declaration in Stone
2 copies - 2 average
Nantuko Husk
2 copies - 2 average
Liliana, Heretical Healer
2 copies - 2 average
Brood Monitor
2 copies - 2 average