Most played cards in Prison Song:

1 Decks
Icy Manipulator
4 copies - 4 average
Howling Mine
4 copies - 4 average
Winter Orb
4 copies - 4 average
Swords to Plowshares
4 copies - 4 average
Relic Barrier
4 copies - 4 average
Power Sink
4 copies - 4 average
Fellwar Stone
4 copies - 4 average
Disenchant
4 copies - 4 average
Tundra
4 copies - 4 average
Titania's Song
3 copies - 3 average
Tranquility
3 copies - 3 average
Savannah
3 copies - 3 average
Wrath of God
3 copies - 3 average
Tropical Island
3 copies - 3 average
Armageddon
3 copies - 3 average
Circle of Protection: Red
2 copies - 2 average
Dust to Dust
2 copies - 2 average
City in a Bottle
2 copies - 2 average
Sol Ring
1 copies - 1 average
Time Walk
1 copies - 1 average