Most played cards in Red Control:

1 Decks
Burn the Impure
4 copies - 4 average
Kuldotha Phoenix
4 copies - 4 average
Koth of the Hammer
4 copies - 4 average
Galvanic Blast
4 copies - 4 average
Into the Core
4 copies - 4 average
Tumble Magnet
4 copies - 4 average
Sphere of the Suns
4 copies - 4 average
Shrine of Burning Rage
4 copies - 4 average
Volt Charge
4 copies - 4 average
Ratchet Bomb
4 copies - 4 average
Oxidda Scrapmelter
3 copies - 3 average
Slagstorm
3 copies - 3 average
Red Sun's Zenith
3 copies - 3 average
Karn Liberated
2 copies - 2 average