Puresight Merrow + Paradise Mantle + Thassa's Oracle

Note1: Puresight Merrow with unsummoning sickness or equip by Swiftfoot Boots

Note2: If you only have Puresight Merrow and Paradise Mantle, you can find Thassa's Oracle by remove top of your library many time until found it then draw it to cast for win the game.

Wanderwine Prophets + Deeproot Pilgrimage or Summon the School

Wanderwine Prophets + Emperor Mihail II + Equilibrium+ any merfolk in your hand (to cast and return any merfolk for loop trigger create token merfolk to feed every turn.)

Wanderwine Prophets + Meanders Guide + any other merfolk on board + any merfolk with mana value 1-3 in graveyard

Note: Wanderwine Prophets can attack to opponent by gain abilities from protection color by Sygg, River Guide, become unblockable by Merfolk Sovereign, gain islankwalk by Master of the Pearl Trident, has flying by Mist Dancer.

Deeproot Pilgrimage + Intruder Alarm + any merfolk has activate abilities by tap itself or tap a creature engine.

Deeproot Pilgrimage + Puresight Merrow + Paradise Mantle.

After Infinite mana + Emperor Mihail II + Equilibrium+ any merfolk in your hand.

Note1: Infinite token but they have no haste, you can't finish game that turn yet. If you have Vodalian Hexcatcher or Lullmage Mentor or Opposition on a board , your opponent may be concede

Note2: If you have Judge of Currents, you can gain infinite life. If you have Wake Thrasher, you can swing to opponent by Wake Thrasher with inifinite power

Note3: If you have Blasting Station, you can finish every opponent by loop deal damage to them

Isochron Scepter + Dramatic Reversal + many artifact with mana abilities can product total 3 or more mana.

Merrow Reejerey + Equilibrium (have any merfolk in your hand and other any merfolk on board) + Three Tree City

Note1: Three Tree City must can be product total 5 or more mana, if you have any merfolk with mana value 1 in your hand and other merfolk with mana value 1-2 on board, also if Three Tree City must can be product total 6 or more mana for any merfolk with mana value 2 in your hand and other merfolk with mana value 2-3 on board so on

Note2: If you have Pyre of Heroes , you can finish game by search many merfolks from your deck on board by sacrifice Sygg, River Guide many time to finish. (see Infinite Draw and Infinite Token)

Benthic Biomancer + Vodalian Wave-Knight + any instantly sacrifice a creature engine

After Infinite token merfolk + Neerdiv, Devious Diver on board + Summon the School in graveyard.

Note: With only have Benthic Biomancer and Vodalian Wave-Knight, they can't be stop loop by themself unless you have cards in hand, draw/discard until you get a spot removal to blow Benthic Biomancer

Neerdiv, Devious Diver + Paradise Mantle + Deeproot Pilgrimage + Intruder Alarm

Deeproot Pilgrimage + Intruder Alarm + any merfolk has activate abilities by tap itself or tap a creature engine.+ Blasting Station.

Merrow Reejerey + Equilibrium (have any merfolk in your hand and other any merfolk on board) + Three Tree City + Blasting Station.

Isochron Scepter + Dramatic Reversal + many artifact with mana abilities can product total 3 or more mana + Blasting Station.

Note1: For Combo Merrow Rejerey to infinite mana for use Blasting Station sacrifice Sygg, River Guide many time.

Note2: For Combo Isochron Sceptor to infinite mana for use Blasting Station sacrifice Sygg, River Guide many time.

After infinite token merfolk + Opposition

After infinite token merfolk + Lullmage Mentor

note: With Opposition or Lullmage Mentor, if you have Teferi, Time Raveler on board too, your opponent may be concede