My current modern mono-blue merfolk deck.
Sideboard Guide
Built from and talk through his sideboarding choices. Thanks Joe!
Infect
Need a fast clock. Remove expensive/slow cards. Knock out there creatures and pump spells.
- -2 Thassa, God of the Sea
- -2 Merrow Reejerey
- -2 Spreading Seas
- -1 Benthic Biomancer
- +3 Dismember
- +2 Echoing Truth
- +2 Deprive
BR Phoenix
Since they already play Islands, seas aren’t very useful. Want to destroy their graveyard and stop Thing in the Ice before it flips.
- -4 Spreading Seas
- -3 Sea’s Claim
- -3 Benthic Biomancer
- +2 Kopala, Warden of Waves
- +2 Echoing Truth
- +3 Dismember
- +3 Relic of Progenitus
Mono-Green Tron
Seas on their Tron lands. Counter their Planeswalkers and fetch spells. Revoker threats.
- -4 Merfolk Trickster
- -1 Merrow Reejerey
- +3 Phyrexian Revoker
- +2 Deprive
Jund
Vials are bad top decks, and Benthic Biomancer is too easily picked off by Plague Engineer. Focus on protecting your creatures, destroying their graveyard, and killing off their high-impact creatures.
- -4 Aether Vials
- -4 Benthic Biomancer
- +2 Kopala, Warden of Waves
- +3 Relic of Progenitus
- +3 Dismember
UW Control
Hold back most of your creatures, chip at 2-4 damage at a time. Make sure you never have enough devotion to turn Thassa into a creature. BE PATIENT!
- -3 Spreading Seas
- -3 Sea’s Claim
- -1 Island
- +2 Kopala, Warden of Waves
- +2 Deprive
- +3 Dismember
Hogaak
Destroy the graveyard. Bounce Hogaak back to the hand if you can.
- -4 Force of Negation
- -1 Merrow Reejerey
- +3 Relic of Progenitus
- +2 Echoing Truth
Eldrazi Aggro
Focus on creature interaction and shutting down Planeswalkers.
- -4 Force of Negation
- -2 Benthic Biomancer
- -2 Merrow Reejerey
- +3 Dismember
- +2 Echoing Truth
- +3 Phyrexian Revoker
4-Color Scapeshift
Keep yourself above 18 life. Race to get in damage. Counter Bring to the Light and Scapeshift.
- -3 Sea’s Claim
- -1 Spreading Seas
- +2 Deprive
- +2 Kopala, Warden of Waves
Bogles
Race to get in damage. Remove slower creatures. Counter and bounce critical Auras/Enchantments.
- -2 Merrow Reejerey
- -2 Thassa, God of the Sea
- +2 Deprive
- +2 Echoing Truth