"Mono" Blue "Dredge"

https://scryfall.com/@yoman5/decks/ab3e3659-7a32-4fec-aeb7-37d2e637a3dc

4 Narcomoeba
4 Pteramander
4 Arclight Phoenix
4 Merfolk Secretkeeper / Venture Deeper
4 Creeping Chill
4 Mission Briefing
4 Opt
4 Radical Idea
4 Steam Vents
10 Island
2 Castle Vantress
4 Drowned Secrets
4 Discovery / Dispersal
4 Watery Grave

// Sideboard