Most played cards in Golgari Midrange:

1 Decks
Grasp of Darkness
4 copies - 4 average
Tireless Tracker
4 copies - 4 average
Evolving Wilds
4 copies - 4 average
Liliana, the Last Hope
4 copies - 4 average
Sylvan Advocate
4 copies - 4 average
Languish
4 copies - 4 average
Llanowar Wastes
4 copies - 4 average
Hissing Quagmire
4 copies - 4 average
Ruinous Path
3 copies - 3 average
Traverse the Ulvenwald
3 copies - 3 average
Transgress the Mind
3 copies - 3 average
Dead Weight
3 copies - 3 average
Den Protector
2 copies - 2 average
Nissa, Vastwood Seer
2 copies - 2 average
Dark Petition
2 copies - 2 average
Ultimate Price
2 copies - 2 average
Seasons Past
1 copies - 1 average
Ishkanah, Grafwidow
1 copies - 1 average
Virulent Plague
1 copies - 1 average
Woodland Bellower
1 copies - 1 average