MTGArena - Blue Devotion Self-Mill (ADL)

Deck
1 Quasiduplicate (GRN) 51
4 Merfolk Secretkeeper (ELD) 53
4 Arcanist's Owl (ELD) 206
4 Brazen Borrower (ELD) 39
4 Gadwick, the Wizened (ELD) 48
2 Thassa, Deep-Dwelling (THB) 71
4 Thassa's Oracle (THB) 73
2 Wall of Lost Thoughts (RNA) 59
4 Castle Vantress (ELD) 242
3 Kiora, Behemoth Beckoner (WAR) 232
3 Nyx Lotus (THB) 235
2 Flood of Tears (M20) 59
3 Drowned Secrets (GRN) 39
20 Island (ELD) 254

https://scryfall.com/@BryanG/decks/d49f2ab5-0a54-4a52-8e1d-bdd1ce854029