Most played cards in Gush / Control:

1 Decks
Force of Will
4 copies - 4 average
Swords to Plowshares
4 copies - 4 average
Flooded Strand
4 copies - 4 average
Tundra
3 copies - 3 average
Dack Fayden
3 copies - 3 average
Gush
3 copies - 3 average
Mental Misstep
3 copies - 3 average
Pyroblast
2 copies - 2 average
Mana Drain
2 copies - 2 average
Jace, the Mind Sculptor
2 copies - 2 average
Nahiri, the Harbinger
2 copies - 2 average
Polluted Delta
2 copies - 2 average
Containment Priest
2 copies - 2 average
Rest in Peace
2 copies - 2 average
Tormod's Crypt
2 copies - 2 average
Stony Silence
2 copies - 2 average
Preordain
2 copies - 2 average
Volcanic Island
2 copies - 2 average
Mox Ruby
1 copies - 1 average
Black Lotus
1 copies - 1 average