Sphinx's Tutelageutility$6.23This is one of the closest analogues: an enchantment that repeatedly mills opponents when you draw cards. It scales similarly with draw-heavy decks and can mill much harder over time.
Teferi's TutelageutilityBudget$0.29A direct functional cousin to Psychic Corrosion, turning each draw into opponent milling. It also includes self-mill/card filtering, making it a strong upgrade in some blue draw shells.
Court of Cunningutility$4.11An enchantment-based mill payoff that continually pressures opponents, especially in multiplayer. While not tied to drawing, it fills a similar passive mill role from an enchantment slot.
Fraying SanityutilityBudget$0.36This is a dedicated mill enhancer that doubles down on mill from any source, making it a strong companion to draw-based mill plans. It doesn't trigger off draws itself, but it amplifies the same strategy.
Jace's ErasureutilityBudget$0.21A cheaper draw-triggered mill enchantment that performs a very similar role in blue decks. It mills fewer cards per draw, but the lower cost makes it a budget-friendly equivalent.
Omen of the Seacard_drawBudget$0.13Not a mill card, but it supports the same blue draw-engine game plan by replacing itself and smoothing draws. In decks built around draw triggers, it helps turn on effects like Psychic Corrosion.
Windfallcard_draw$11.40This is a classic blue draw-and-discard spell that can generate huge mill triggers from Psychic Corrosion-style effects. As a standalone card, it functions as a strong card-advantage enabler for mill strategies.
Psychosis CrawlerutilityBudget$0.75Like Psychic Corrosion, it rewards drawing cards and turns each draw into direct pressure on opponents. It doesn't mill, but it occupies the same draw-payoff slot in blue control/combo decks.