# 2019 Magic: The Gathering Ravnica Allegiance #35

> The 2019 Magic: The Gathering Code of Constraint foil card from the Ravnica Allegiance set, a versatile instant for competitive play.

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## Identity

- **Year**: 2019
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Ravnica Allegiance
- **Card number**: #35
- **Product type**: TCG_CARD

## Description

Code of Constraint is a three-mana blue instant from the 2019 Magic: The Gathering Ravnica Allegiance expansion, identified by card number 35 and set code RNA. As an Uncommon foil, this card offers collectors a shimmering finish that enhances its visual appeal while maintaining the game's standard border design. The artwork is crafted by Ekaterina Burmak, whose style brings a distinct aesthetic to the Ravnica plane's intricate world-building. In gameplay, Code of Constraint serves as a flexible tool for control strategies. It allows players to deal -4/-0 to a target creature until end of turn and draw a card, providing immediate board control and card advantage. A key strategic layer exists in its Addendum ability: if cast during a main phase, the targeted creature is tapped and does not untap during its controller's next untap step. This mechanic makes it highly effective for locking down key permanents or preventing damage from untapped attackers. Collectors value this card for its combination of strategic utility and foil treatment. The foil version is particularly sought after by enthusiasts who appreciate the tactile and visual differences foil prints offer over standard nonfoil versions. Whether you are looking to complete your Ravnica Allegiance collection or add a powerful instant to your deck, Code of Constraint stands out as a notable piece of Magic: The Gathering history. Explore our inventory to find high-quality foil versions of this and other staples from the Ravnica Allegiance set, ensuring you can build your collection with confidence and precision.

## FAQ

### What is the mana cost of Code of Constraint?

Code of Constraint has a mana cost of {2}{U}, requiring two generic mana and one blue mana to cast. Its total mana value is 3, making it a relatively low-cost spell for the effects it provides.

### How does the Addendum ability work?

The Addendum ability triggers if you cast Code of Constraint during your main phase. When this happens, the target creature is tapped and does not untap during its controller's next untap step, effectively neutralizing it for an extra turn.

### Who illustrated Code of Constraint?

The artwork for Code of Constraint was created by Ekaterina Burmak. Her illustration is featured on the Uncommon foil version of the card from the 2019 Ravnica Allegiance set.

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Last verified: 2025-11-29.