Most played cards in Merfolks:

1 Decks
 ↓ Lord of Atlantis
4 copies – 4 avg
↓ Psionic Blast
4 copies – 4 avg
↓ Phantasmal Terrain
4 copies – 4 avg
↓ Merfolk of the Pearl Trident
4 copies – 4 avg
↓ Mishra's Factory
4 copies – 4 avg
↓ Counterspell
4 copies – 4 avg
↓ River Merfolk
4 copies – 4 avg
↓ Serendib Efreet
4 copies – 4 avg
↓ Energy Flux
3 copies – 3 avg
↓ Blue Elemental Blast
3 copies – 3 avg
↓ Aeolipile
3 copies – 3 avg
↓ Psychic Purge
3 copies – 3 avg
↓ Boomerang
2 copies – 2 avg
↓ Control Magic
2 copies – 2 avg
↓ Seasinger
2 copies – 2 avg
↓ Maze of Ith
2 copies – 2 avg
↓ Jayemdae Tome
2 copies – 2 avg
↓ Strip Mine
1 copies – 1 avg
↓ Tolaria
1 copies – 1 avg
↓ Chaos Orb
1 copies – 1 avg