Merfolk 
Main deck (60)
Creatures (30)
Instants (2)
Artifacts (5)
Enchantments (4)
Lands (19)
Sideboard (14)
Main deck (60)
Creatures (30)
- 4 Cursecatcher
- 4 Harbinger of the Tides
- 4 Lord of Atlantis
- 4 Master of the Pearl Trident
- 4 Master of Waves
- 3 Merrow Reejerey
- 3 Phantasmal Image
- 4 Silvergill Adept
Instants (2)
Artifacts (5)
Enchantments (4)
Lands (19)
Sideboard (14)
Compared with the average Merfolk list
Average of 40 decks in the 90 days up to Jan. 26, 2018, the day of this tournament.
Main deck
More than usual
- +8 Island (15 vs 6.8)
- +3 Master of Waves (4 vs 1.1)
- +2 Phantasmal Image (3 vs 0.8)
- +1 Spell Pierce (2 vs 0.6)
- +1 Cursecatcher (4 vs 2.9)
Fewer than usual
- -2 Kumena's Speaker (0 vs 2.5)
- -2 Merfolk Branchwalker (0 vs 2.2)
- -2 Botanical Sanctum (0 vs 2.1)
- -1 Cavern of Souls (0 vs 1.5)
- -1 Breeding Pool (0 vs 1.4)
- -1 Dismember (0 vs 1.0)
Sideboard
More than usual
- +3 Vapor Snag (3 vs 0.1)
- +2 Kira, Great Glass-Spinner (2 vs 0.1)
- +2 Sea's Claim (2 vs 0.2)
- +1 Unified Will (2 vs 0.7)
Fewer than usual
- -1 Ceremonious Rejection (1 vs 2.4)
- -1 Natural State (0 vs 1.3)
Most unusual list in this period: Smagex in Modern League (5-0) (16 cards away from the average)