Psychic CorrosionHow it works & interactions with other cards

How it Works

Psychic Corrosion features a triggered ability that triggers whenever you draw a card. Unlike many similar effects that target a single player, this enchantment forces each opponent to mill two cards for every single card you draw. This means in a typical four-player Commander game, a single draw translates to six cards being moved from libraries to graveyards.

Step-by-Step Resolution

First, an event occurs that causes you to draw one or more cards. For every individual card drawn, a separate instance of the Psychic Corrosion ability triggers and is put onto the stack. If you draw three cards at once, three triggers are placed on the stack. As each trigger resolves, each opponent puts the top two cards of their library into their graveyard. Players can respond to each individual trigger before it resolves.

Common Pitfalls

The most important distinction to remember is the difference between 'drawing' and 'putting into hand.' If a spell or ability, such as a search effect or a specific keyword like 'put the top card of your library into your hand,' does not use the specific word 'draw,' Psychic Corrosion will not trigger. Additionally, since the ability does not target, cards that give opponents hexproof will not protect them from the milling effect.

When to Play It

Psychic Corrosion excels in 'pillow fort' strategies where you can protect yourself while slowly draining resources. It is most effective when paired with repeatable draw engines or spells that draw massive amounts of cards at once, such as 'X' draw spells. It serves as a passive win condition that rewards you for doing what blue does best: keeping your hand full.

Interaction examples

The Taxation Synergy

Rhystic Study

While you have both enchantments in play, an opponent casts a spell. If they choose not to pay the {1} for Rhystic Study, you draw a card. This immediately triggers Psychic Corrosion, forcing all opponents to mill two cards. This turns your opponent's spells into fuel for their own library's destruction.

Defensive Attrition

Propaganda

In this scenario, Propaganda makes it difficult and expensive for opponents to attack you. As the game slows down, your normal draw phase each turn triggers Psychic Corrosion. Even without extra draw spells, you are milling your opponents for two cards every turn while staying safe behind your tax barrier.

Multiple Draws

If you cast a spell that says 'Draw three cards,' Psychic Corrosion triggers three separate times. Each of those three triggers will resolve one by one, with each opponent milling two cards per trigger, for a total of six cards milled per opponent.