Psychic Corrosion
Enchantment
Whenever you draw a card, each opponent mills two cards.
- CMC
- 3
- Mana cost
- Color identity
- U
- Rarity
- uncommon
- Set
- Core Set 2019
- Price
- $6.68
- EDHREC rank
- #1800
Psychic Corrosion turns every card you draw into two mills on each opponent — at four mana, that's a passive engine that scales lethally with draw-heavy commanders like Arjun, the Shifting Flame or one-shot spells like Peer into the Abyss. If your deck draws cards, this enchantment converts that action into a win condition without asking for anything extra.
Best Commanders
Commanders with the highest synergy
Arjun, the Shifting Flame
Arjun, the Shifting Flame replaces your hand with eight new cards on every spell cast, and Psychic Corrosion converts each of those wheel triggers into sixteen mills per opponent — the two cards form a self-contained loop that can empty libraries in a single turn cycle.
Bruvac the Grandiloquent
Bruvac the Grandiloquent doubles every mill trigger, so Psychic Corrosion's two-card mill becomes four — a single wheel effect can close out the game on the spot with both on the battlefield.
The Mindskinner
The Mindskinner rewards milling opponents with creature theft, and Psychic Corrosion provides a steady passive mill stream that fuels that theft engine every time you draw a card.
Phenax, God of Deception
Phenax, God of Deception builds around sustained attrition milling, and Psychic Corrosion adds a draw-triggered layer that accelerates library depletion without requiring creatures to tap.
Captain N'ghathrod
Captain N'ghathrod incentivizes milling with reanimation value, and Psychic Corrosion feeds the yard consistently enough to give N'ghathrod targets every turn.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Psychic Corrosion is legal in Commander, Legacy, Modern, Pioneer, Vintage, and Oathbreaker — but it only truly matters in Commander, where opponents start with 99-card libraries and the game runs long enough for a passive enchantment to close things out. In Modern and Pioneer the card is too slow and too conditional; dedicated mill decks there use cards that mill eight or more in a single shot rather than drip-feeding two at a time. Legacy and Vintage don't want it at all — those formats end before a four-mana do-nothing enchantment can accumulate enough triggers. Commander is where Psychic Corrosion earns its keep, specifically in wheels-and-draw shells where the triggers stack fast enough to threaten multiple opponents simultaneously.
Key Combos
Combo lines featuring this card
Budget Alternatives
Cheaper options that do most of the same work
Fraying Sanity is the closest analogue — it doubles all mill a player takes each turn and costs under $2, though it targets one opponent rather than hitting the table. Sphinx's Tutelage mills two per draw just like Psychic Corrosion but also has the incidental synergy of potentially chaining more mills if the revealed cards share a color, making it a near-direct substitute at roughly $0.50.
Price Context
Current price
$6.68 mid tier
At $6.68, Psychic Corrosion sits in mid-tier pricing for an enchantment with no reprint in a widely-played set, which keeps supply constrained relative to demand from Commander mill decks. It's a fair price for a build-around that shows up in over 30,000 decks on EDHREC, and there's no cheaper card that replicates the exact draw-triggered, hits-all-opponents effect.
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Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.