Most played cards in UWR Control:

2 Decks
Flooded Strand
8 copies - 4 average
Swords to Plowshares
8 copies - 4 average
Force of Will
8 copies - 4 average
Brainstorm
8 copies - 4 average
Ponder
8 copies - 4 average
Prismatic Vista
8 copies - 4 average
Shark Typhoon
6 copies - 3 average
Narset, Parter of Veils
6 copies - 3 average
Dress Down
6 copies - 3 average
Prismatic Ending
6 copies - 3 average
Surgical Extraction
5 copies - 2.5 average
Pyroblast
4 copies - 2 average
Hydroblast
4 copies - 2 average
Flusterstorm
4 copies - 2 average
Supreme Verdict
4 copies - 2 average
Force of Negation
4 copies - 2 average
Staff of the Storyteller
4 copies - 2 average
Scalding Tarn
3 copies - 1.5 average
Tundra
3 copies - 1.5 average
The Wandering Emperor
3 copies - 1.5 average