Merfolk 
Main deck (60)
Creatures (24)
Instants (8)
Artifacts (4)
Enchantments (4)
Lands (20)
Sideboard (15)
Main deck (60)
Creatures (24)
- 4 Cursecatcher
- 4 Harbinger of the Tides
- 4 Lord of Atlantis
- 4 Master of the Pearl Trident
- 4 Phantasmal Image
- 4 Silvergill Adept
Instants (8)
Artifacts (4)
Enchantments (4)
Lands (20)
Sideboard (15)
Compared with the average Merfolk list
Average of 18 decks in the 30 days up to Oct. 8, 2017, the day of this tournament.
Main deck
More than usual
- +4 Faerie Conclave (4 vs 0.2)
- +4 Echoing Truth (4 vs 0.4)
- +3 Phantasmal Image (4 vs 1.1)
- +2 Dismember (4 vs 1.7)
Fewer than usual
- -3 Master of Waves (0 vs 3.0)
- -2 Merrow Reejerey (0 vs 2.3)
- -1 Flooded Strand (0 vs 1.2)
- -1 Polluted Delta (0 vs 1.2)
- -1 Fatal Push (0 vs 1.1)
- -1 Kira, Great Glass-Spinner (0 vs 1.1)
Sideboard
More than usual
- +3 Deprive (4 vs 0.6)
- +3 Chalice of the Void (4 vs 0.8)
- +3 Sorcerous Spyglass (3 vs 0.2)
- +2 Relic of Progenitus (4 vs 2.5)
Fewer than usual
- -2 Ceremonious Rejection (0 vs 1.8)
- -1 Dispel (0 vs 1.2)
- -1 Negate (0 vs 1.2)
Most unusual list in this period: Zurender in Modern Challenge (19 cards away from the average)