Siphon Insight card art

Siphon Insight

Instant MV 2

Tracked across real Commander games played through TurnZero HQ.

What it does

Look at the top two cards of target opponent's library. Exile one of them face down and put the other on the bottom of that library. You may play the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

Flashback 1

Rulings

10 official rulings, in the order Wizards published them.

  • 2021-09-24

    You don't have to disclose which card you exiled and which card you put on the bottom of the library. For example, if your opponent knows what the top card of their library is and you cast Siphon Insight, you don't have to tell them where you put that card.

  • 2021-09-24

    You may play the card even if it is a land.

  • 2021-09-24

    You must still follow all normal timing rules to play a card exiled with Siphon Insight.

  • 2021-09-24

    Only you get to look at the exiled card. Its owner doesn't get to know what it is while it is in exile unless you tell them.

  • 2025-06-06

    A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.

  • 2025-06-06

    If a card with flashback is put into your graveyard during your turn, you can cast it if it's legal to do so before any other player can take any actions.

  • 2025-06-06

    You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using flashback only when you could normally cast a sorcery.

  • 2025-06-06

    To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.

  • 2025-06-06

    "Flashback [cost]" means "You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."

  • 2025-06-06

    You can cast a spell using flashback even if it was somehow put into your graveyard without having been cast.

Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.

In the 99

Every deck whose current list includes Siphon Insight, whatever its commander.

Decks running it 2
Games played 0
Win rate — Fewer than 5 completed games, which is not enough to publish a rate yet.
Confirmed on board 0 Games where a board photo caught it actually in play.

Most played under

Commander Decks Games Win rate
Glarb, Calamity's Augur 1 0 —
Xanathar, Guild Kingpin 1 0 —

Colors it shows up in

  • Dimir 1 deck
  • Sultai 1 deck

Siphon Insight price history

The Outlaws of Thunder Junction Commander #242 printing, as Scryfall reports the TCGplayer market. Updated nightly.

Non-foil today$0.37▲ $0.02 (5.7%)
Low $0.35 · High $0.39Tracked since Sep 28, 2026
Every recorded price change
DateNon-foil
Oct 26, 2026$0.37
Oct 23, 2026$0.37
Oct 19, 2026$0.36
Oct 18, 2026$0.37
Oct 11, 2026$0.39
Oct 9, 2026$0.38
Oct 2, 2026$0.39
Oct 1, 2026$0.38
Sep 30, 2026$0.37
Sep 29, 2026$0.36
Sep 28, 2026$0.35

A row is recorded only on nights the price moved, so each price held until the row above it.

Every version of Siphon Insight

7 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly. A printing with no figure shows a dash rather than a zero, because Scryfall publishes none for some of them. Click a card's art to chart that version's price above.

Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for Siphon Insight. It runs a name search across every version, which covers the printings TCGplayer publishes no direct link to.

Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only. No individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.