Most played cards in Merfolks:

5 Decks
 ↓ Aether Vial
20 copies – 4 avg
↓ Cursecatcher
20 copies – 4 avg
↓ Lord of Atlantis
20 copies – 4 avg
↓ Master of the Pearl Trident
20 copies – 4 avg
↓ Silvergill Adept
20 copies – 4 avg
↓ Spreading Seas
20 copies – 4 avg
↓ Mutavault
19 copies – 3.8 avg
↓ Harbinger of the Tides
18 copies – 3.6 avg
↓ Merrow Reejerey
16 copies – 3.2 avg
↓ Merfolk Trickster
16 copies – 3.2 avg
↓ Cavern of Souls
15 copies – 3 avg
↓ Master of Waves
12 copies – 2.4 avg
↓ Chalice of the Void
11 copies – 2.2 avg
↓ Grafdigger's Cage
11 copies – 2.2 avg
↓ Tidebinder Mage
10 copies – 2 avg
↓ Ceremonious Rejection
8 copies – 1.6 avg
↓ Mistcaller
8 copies – 1.6 avg
↓ Relic of Progenitus
8 copies – 1.6 avg
↓ Negate
7 copies – 1.4 avg
↓ Kira, Great Glass-Spinner
6 copies – 1.2 avg