Most played cards in Turbo Depths:

6 Decks
Thespian's Stage
23 copies - 3.83 average
Dark Depths
22 copies - 3.67 average
Wasteland
16 copies - 2.67 average
Elvish Reclaimer
16 copies - 2.67 average
Once Upon a Time
16 copies - 2.67 average
Force of Vigor
16 copies - 2.67 average
Crop Rotation
16 copies - 2.67 average
Elvish Spirit Guide
16 copies - 2.67 average
Mindbreak Trap
11 copies - 1.83 average
Leyline of the Void
11 copies - 1.83 average
Urborg, Tomb of Yawgmoth
10 copies - 1.67 average
Verdant Catacombs
10 copies - 1.67 average
Ancient Tomb
8 copies - 1.33 average
Bojuka Bog
8 copies - 1.33 average
Thoughtseize
8 copies - 1.33 average
Allosaurus Shepherd
8 copies - 1.33 average
Sylvan Scrying
8 copies - 1.33 average
Pithing Needle
8 copies - 1.33 average
Mishra's Workshop
8 copies - 1.33 average
Golos, Tireless Pilgrim
8 copies - 1.33 average