Card Codex

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17 May 2024: Card library updated.

Code of Constraint

2U · 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.

Similar cards

Color identity:
NameManaTypeText
Storage Matrix 3Artifact As long as Storage Matrix is untapped, each player chooses artifact, creature, or land during their untap step. That player can untap only permanents of the chosen type this step.
Grandmother Sengir 4BLegendary Creature — Human Wizard {1}{B}, {T}: Target creature gets -1/-1 until end of turn. 3/3
Hideous Laughter 2BBInstant — Arcane All creatures get -2/-2 until end of turn. Splice onto Arcane {3}{B}{B} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Guul Draz Assassin BCreature — Vampire Assassin Level up {1}{B} ({1}{B}: Put a level counter on this. Level up only as a sorcery.) LEVEL 2-3 2/2 {B}, {T}: Target creature gets -2/-2 until end of turn. LEVEL 4+ 4/4 {B}, {T}: Target creature gets -4/-4 until end of turn. 1/1
Aim High 1GInstant Untap target creature. It gets +2/+2 and gains reach until end of turn. (It can block creatures with flying.)
Spidery Grasp 2GInstant Untap target creature. It gets +2/+4 and gains reach until end of turn. (It can block creatures with flying.)
Steady Aim 1GInstant Untap target creature. It gets +1/+4 and gains reach until end of turn.
Deep Spawn 5UUUCreature — Homarid Trample At the beginning of your upkeep, sacrifice Deep Spawn unless you mill two cards. {U}: Deep Spawn gains shroud until end of turn and doesn't untap during your next untap step. Tap Deep Spawn. (A creature with shroud can't be the target of spells or abilities.) 6/6
Malfunction 3UEnchantment — Aura Enchant artifact or creature When Malfunction enters the battlefield, tap enchanted permanent. Enchanted permanent doesn't untap during its controller's untap step.
Tangle Kelp UEnchantment — Aura Enchant creature When Tangle Kelp enters the battlefield, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step if it attacked during its controller's last turn.
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