Most played cards in Golgari Control:

2 Decks
Liliana, the Last Hope
8 copies - 4 average
Evolving Wilds
8 copies - 4 average
Languish
8 copies - 4 average
Hissing Quagmire
8 copies - 4 average
Llanowar Wastes
8 copies - 4 average
Grasp of Darkness
7 copies - 3.5 average
Traverse the Ulvenwald
7 copies - 3.5 average
Ruinous Path
7 copies - 3.5 average
Nissa, Vastwood Seer
5 copies - 2.5 average
Ishkanah, Grafwidow
5 copies - 2.5 average
Transgress the Mind
4 copies - 2 average
Elvish Visionary
4 copies - 2 average
Dead Weight
4 copies - 2 average
Den Protector
4 copies - 2 average
Tireless Tracker
4 copies - 2 average
Sylvan Advocate
4 copies - 2 average
Pick the Brain
3 copies - 1.5 average
Westvale Abbey
3 copies - 1.5 average
Hedron Archive
3 copies - 1.5 average
Infinite Obliteration
3 copies - 1.5 average