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Code of Constraint Ravnica Allegiance MTG card
RNA #35 · Art by Ekaterina Burmak
RNA set symbol, UncommonRavnica Allegiance#35Uncommon

Code of Constraint

InstantAddendum
TCGplayer market · RNA #35 nonfoil
$0.05 0.0% $0.00, 7 days
1-year range
30 days
+66.7%
EDHREC rank
#26,844 Down 126 in 30 days
Best buylist

Buy RNA #35 nonfoil

TCGplayer, $0.05 (opens in a new tab) Card Kingdom, (opens in a new tab) Mana Pool, (opens in a new tab) eBay, Check price (opens in a new tab)

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Code of Constraint Price Summary

The benchmark price (cheapest playable nonfoil) is $0.05, flat over 7 days, up 66.7% over 30 days, down 28.6% over 90 days.

Code of Constraint Price History

Markets TCGplayer marketreference

Markets on the chart

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Card Kingdom retail
Card Kingdom buylist
Mana Pool, lowest listing
Cardmarket trend
TCGplayer change, 1 year
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High in range
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Markets shown

Code of Constraint price history chart, default range 3 months. currently $0.05.

Where to Buy and Sell Code of Constraint

Every market we track for RNA #35 nonfoil on one line. The gray band is what you give up selling to a store instead of buying at market.

Code of Constraint in Sealed Products

Checking which sealed products hold RNA #35 nonfoil.

Loading sealed products.

Code of Constraint Printings & Prices

Code of Constraint has 3 tracked printings across 3 sets, in nonfoil and foil finishes.

RNA set symbol, UncommonRNA #35
Viewing
PLST set symbol, UncommonPLST #RNA-35
CLU set symbol, UncommonCLU #83

Sell Code of Constraint: Buylist Offers

BuyerPrintingFinishCash offerMarketSpread to market
Card KingdomRNA #35Foil
Card KingdomCLU #83Nonfoil
Card KingdomPLST #RNA-35Nonfoil
Card KingdomRNA #35Nonfoil

Code of Constraint Rules Text & Legality

Code of Constraint

Target creature gets -4/-0 until end of turn.

Draw a card.

Addendum — If you cast this spell during your main phase, tap that creature and it doesn't untap during its controller's next untap step.

Code of Constraint is legal in Pioneer, Modern, Legacy and Commander, and not legal in Standard and Pauper.

  • BrawlLegal
  • CommanderLegal
  • Competitive BrawlLegal
  • Duel CommanderLegal
  • GladiatorLegal
  • HistoricLegal
  • LegacyLegal
  • ModernLegal
  • OathbreakerLegal
  • PioneerLegal
  • TimelessLegal
  • VintageLegal
  • AlchemyNot legal
  • Future StandardNot legal
  • Old SchoolNot legal
  • PauperNot legal
  • Pauper CommanderNot legal
  • Penny DreadfulNot legal
  • PreDHNot legal
  • PremodernNot legal
  • StandardNot legal
  • Standard BrawlNot legal
View on Scryfall ↗

Code of Constraint Rulings

  • Jan 12, 2024

    Addendum abilities of instant spells apply while the spell is resolving, not immediately after casting it. If the spell is countered, you don't get the addendum bonus.

  • Jan 12, 2024

    If an effect copies a spell with an addendum ability while it's on the stack, the copy wasn't cast at all, so you won't get the addendum bonus.

  • Jan 25, 2019

    Code of Constraint can target a creature that's already tapped. If you cast it during your main phase, that creature won't untap during its controller's next untap step.

  • Jan 25, 2019

    If the target creature is an illegal target by the time Code of Constraint tries to resolve, the spell doesn't resolve. You don't draw a card.

Reprints & Reprint Risk

Code of Constraint has been reprinted 4 times.

  • Jan 25, 2019RNA set symbol, UncommonRavnica AllegianceRNA #35
  • Jan 25, 2019RNA set symbol, UncommonRavnica Allegiance · foilRNA #35
  • Apr 29, 2022PLST set symbol, UncommonThe ListPLST #RNA-35
  • Feb 23, 2024CLU set symbol, UncommonRavnica: Clue EditionCLU #83

Code of Constraint in Commander

Code of Constraint is the #26,844 most-played card on EDHREC, down 126 places over the last 30 days.

#26,844 EDHREC rank
across all Commander decks Down 126 in 30 days

Code of Constraint FAQ

How much is Code of Constraint worth?

Code of Constraint is worth about $0.05 for its cheapest playable printing as of Nov 10, 2026.

Is Code of Constraint legal in Commander?

Yes. Code of Constraint is legal in Commander. It is also legal in Pioneer, Modern and Legacy.

Has Code of Constraint been reprinted?

Yes. Code of Constraint has been reprinted 4 times, with 3 printings tracked on The Index.

Why is Code of Constraint cheap?

Code of Constraint trades at about $0.05; 4 reprints keep supply plentiful, and Commander demand is modest (#26,844 on EDHREC).