
Madame Web, Clairvoyant
{4}{U}{U}Legendary Creature — Mutant Advisor4/4
Build around Madame Web, Clairvoyant as your commander →
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You may look at the top card of your library any time.
You may cast Spider spells and noncreature spells from the top of your library.
Whenever you attack, you may mill a card. (You may put the top card of your library into your graveyard.)
Official rulings
- You must follow all normal timing rules when casting a spell this way. (2025-09-19)
- Madame Web lets you look at the top card of your library whenever you want (with one restriction—see below), even if you don't have priority. This action doesn't use the stack. Knowing what that card is becomes part of the information you have access to, just like you can look at the cards in your hand. (2025-09-19)
- If the top card of your library changes while you're casting a spell, playing a land, activating an ability, or taking a special action, you can't look at the new top card until you finish doing so. This means that if you cast the top card of your library, you can't look at the next one until you're done paying for that spell. (2025-09-19)
Cards like this
Functionally similar cards by meaning — playable in Madame Web, Clairvoyant’s colours.

