Most played cards in Missisipi River:

1 Decks
 ↓ Gemstone Caverns
4 copies – 4 avg
↓ Apex Devastator
4 copies – 4 avg
↓ Leyline of the Void
4 copies – 4 avg
↓ Defense Grid
4 copies – 4 avg
↓ Ancient Tomb
4 copies – 4 avg
↓ Violent Outburst
4 copies – 4 avg
↓ Throes of Chaos
4 copies – 4 avg
↓ Creative Technique
4 copies – 4 avg
↓ Trumpeting Carnosaur
4 copies – 4 avg
↓ Mossfire Valley
4 copies – 4 avg
↓ Sandstone Needle
4 copies – 4 avg
↓ Maelstrom Wanderer
3 copies – 3 avg
↓ Call Forth the Tempest
3 copies – 3 avg
↓ Taiga
3 copies – 3 avg
↓ Tibalt's Trickery
3 copies – 3 avg
↓ Hickory Woodlot
3 copies – 3 avg
↓ Dwarven Ruins
3 copies – 3 avg
↓ Boseiju, Who Endures
3 copies – 3 avg
↓ Tinder Farm
2 copies – 2 avg
↓ Emrakul, the Aeons Torn
2 copies – 2 avg