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Code of Constraint

Blue

3 printings listed in our catalog, from newest to oldest.

Code of Constraint, The List printing
The List PLST · No. RNA-35 2024-08-02

Card text

{2}{U}
Instant
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.
Keywords: Addendum
EDHREC rank #26765 Uncommon Not on the Reserved List
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The 3 printings

All, with their prices ↓

Standard ∅ Not legal
Pioneer ✓ Legal
Modern ✓ Legal
Legacy ✓ Legal
Vintage ✓ Legal
Pauper ∅ Not legal
Commander ✓ Legal
Oathbreaker ✓ Legal
Brawl ✓ Legal
Historic ✓ Legal
Timeless ✓ Legal
Alchemy ∅ Not legal
Explorer ∅ Not legal
Gladiator ✓ Legal
Penny ∅ Not legal
Duel ✓ Legal

Official rulings

4 rulings · in English, source Scryfall

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 · Wizards of the Coast

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.

2019-01-25 · Wizards of the Coast

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 · Wizards of the Coast

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.

2024-01-12 · Wizards of the Coast

All printings