Drowned Secrets - Guilds of Ravnica (Rare) [GRN-39]

Drowned Secrets is a two-mana enchantment from Guilds of Ravnica that triggers a mill effect whenever you cast a blue spell, forcing a target player to put the top two cards of their library into their graveyard. This card is particularly effective in mill strategies, allowing you to quickly deplete your opponent's resources while also synergising well with spells that generate card advantage. However, it requires a consistent flow of blue spells to maximise its impact, so it’s best suited for dedicated blue control or mill decks.