Most played cards in LA Mental:

2 Decks
Ideas Unbound
8 copies - 4 average
Patriarch's Bidding
8 copies - 4 average
Living Hive
8 copies - 4 average
Flame-Kin Zealot
8 copies - 4 average
Chrome Mox
8 copies - 4 average
Cabal Ritual
8 copies - 4 average
Careful Study
8 copies - 4 average
Cephalid Coliseum
8 copies - 4 average
Mental Note
8 copies - 4 average
Polluted Delta
7 copies - 3.5 average
Baleful Stare
7 copies - 3.5 average
Thorn Elemental
6 copies - 3 average
Stinkweed Imp
6 copies - 3 average
Twilight's Call
6 copies - 3 average
Sleight of Hand
6 copies - 3 average
Flooded Strand
5 copies - 2.5 average
Watery Grave
5 copies - 2.5 average
Nightmare Void
4 copies - 2 average
Cabal Therapy
4 copies - 2 average
Boseiju, Who Shelters All
3 copies - 1.5 average