Code of Constraint
Ravnica Allegiance (RNA) #35 · Uncommon · Instant
Mana cost: {2}{U}
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.
Illustrated by Ekaterina Burmak · Released January 25, 2019
Prices
- Nonfoil: $0.06 USD · €0.11 EUR
- Foil: $0.36 USD · €0.22 EUR
Nonfoil price since August 29, 2026: down $0.04 USD (40.0%) to $0.06 USD; low $0.06 USD, high $0.10 USD.
Printings
- The List #RNA-35 (PLST) · Uncommon · 2024 · $0.03 USD
- Ravnica: Clue Edition #83 (CLU) · Uncommon · 2024 · $0.08 USD
- Ravnica Allegiance #35 (this printing) · Uncommon · 2019 · $0.06 USD
Legality
- Standard: Not legal
- Alchemy: Not legal
- Pioneer: Legal
- Historic: Legal
- Modern: Legal
- Brawl: Legal
- Legacy: Legal
- Timeless: Legal
- Vintage: Legal
- Pauper: Not legal
- Commander: Legal
- Penny: Not legal
- Oathbreaker: Legal
- Duel: Legal
Rulings
- 2019-01-25 · wotc — 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.
- 2019-01-25 · wotc — 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.
- 2024-01-12 · wotc — 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.
- 2024-01-12 · wotc — 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.