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
Scent of Nightshade 1BInstant Reveal any number of black cards in your hand. Target creature gets -X/-X until end of turn, where X is the number of cards revealed this way.
Exterminate! 2BSorcery Replicate—Tap an untapped Dalek you control. (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) Destroy target creature. Its controller loses 3 life.
Gallantry 1WInstant Target blocking creature gets +4/+4 until end of turn. Draw a card.
Magus of the Candelabra GCreature — Human Wizard {X}, {T}: Untap X target lands. 1/2
Elder Deep-Fiend 8Creature — Eldrazi Octopus Flash Emerge {5}{U}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, tap up to four target permanents. 5/6
Shadow Rift UInstant Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.) Draw a card.
Charix, the Raging Isle 2UULegendary Creature — Leviathan Crab Spells your opponents cast that target Charix, the Raging Isle cost {2} more to cast. {3}: Charix gets +X/-X until end of turn, where X is the number of Islands you control. 0/17
Chaos Moon 3REnchantment At the beginning of each upkeep, count the number of permanents. If the number is odd, until end of turn, red creatures get +1/+1 and whenever a player taps a Mountain for mana, that player adds an additional {R}. If the number is even, until end of turn, red creatures get -1/-1 and if a player taps a Mountain for mana, that Mountain produces colorless mana instead of any other type.
Vivien's Stampede 4GGSorcery Each creature you control gains vigilance, trample, and melee until end of turn. (Whenever a creature with melee attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.) At the beginning of the next main phase this turn, draw a card for each player who was dealt combat damage this turn.
Plague Mare 1BBCreature — Nightmare Horse Plague Mare can't be blocked by white creatures. When Plague Mare enters the battlefield, creatures your opponents control get -1/-1 until end of turn. 2/2
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