Most played cards in Pitch Long:

2 Decks
Polluted Delta
8 copies – 4 avg
Dark Ritual
8 copies – 4 avg
Brainstorm
8 copies – 4 avg
Cabal Ritual
8 copies – 4 avg
Force of Will
8 copies – 4 avg
Duress
7 copies – 3.5 avg
Xantid Swarm
6 copies – 3 avg
Underground Sea
5 copies – 2.5 avg
Grim Tutor
5 copies – 2.5 avg
Chain of Vapor
4 copies – 2 avg
Tendrils of Agony
4 copies – 2 avg
Massacre
4 copies – 2 avg
Misdirection
4 copies – 2 avg
Hurkyl's Recall
3 copies – 1.5 avg
Flooded Strand
3 copies – 1.5 avg
Time Vault
2 copies – 1 avg
Timetwister
2 copies – 1 avg
Tinker
2 copies – 1 avg
Tolarian Academy
2 copies – 1 avg
Yawgmoth's Bargain
2 copies – 1 avg