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Cipher
Keyword Ability
Type Spell (1st ability)
Static (2nd ability)
Introduced Gatecrash
Last used New Capenna Commander
Reminder Text Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of this card without paying its mana cost.)
Storm Scale 9[1]
Statistics
14 cards
{U} 42.9% {B} 35.7% {U/B} 21.4%
Scryfall Search
keyword:"Cipher"

Cipher is a keyword introduced in Gatecrash, wherein it is the Dimir guild mechanic.[2] It also appeared in Dragon's Maze. It was designed by Mark Rosewater.[3]

Description[ | ]

Cipher appears on some instants and sorceries. It represents two abilities. The first is a spell ability that functions while the spell with cipher is on the stack. The second is a static ability that functions while the card with cipher is in the exile zone. “Cipher” means “If this spell is represented by a card, you may exile this card encoded[4] on a creature you control” and “For as long as this card is encoded on that creature, that creature has ‘Whenever this creature deals combat damage to a player, you may copy the encoded card and you may cast the copy without paying its mana cost.’”

In shorter terms, Cipher grants a creature a Saboteur ability, and gives the caster the first trigger up front. Between the small pool of saboteur abilities, the repetitiveness, and the tendency to snowball, it turned out to have an exceedingly narrow design space.[5] R&D ran out of design space making it, and stated that it was dubious that there was enough new design space to be featured in another premier set, giving it a difficult-to-use 9 in the Storm Scale.[6] R&D managed to squeeze out another one-off Cipher card in the Streets of New Capenna Commander decks.[7]

Rules[ | ]

From the glossary of the Comprehensive Rules (March 8, 2024—Fallout)

Cipher
A keyword ability that allows you to encode a card on a creature and cast that card whenever that creature deals combat damage to a player. See rule 702.99, “Cipher.”

From the Comprehensive Rules (March 8, 2024—Fallout)

  • 702.99. Cipher
    • 702.99a Cipher appears on some instants and sorceries. It represents two abilities. The first is a spell ability that functions while the spell with cipher is on the stack. The second is a static ability that functions while the card with cipher is in the exile zone. “Cipher” means “If this spell is represented by a card, you may exile this card encoded on a creature you control” and “For as long as this card is encoded on that creature, that creature has ‘Whenever this creature deals combat damage to a player, you may copy the encoded card and you may cast the copy without paying its mana cost.’”
    • 702.99b The term “encoded” describes the relationship between the card with cipher while in the exile zone and the creature chosen when the spell represented by that card resolves.
    • 702.99c The card with cipher remains encoded on the chosen creature as long as the card with cipher remains exiled and the creature remains on the battlefield. The card remains encoded on that object even if it changes controller or stops being a creature, as long as it remains on the battlefield.

From the glossary of the Comprehensive Rules (March 8, 2024—Fallout)

Encoded
A term that describes the relationship between a permanent and a card exiled by a cipher ability. See rule 702.99, “Cipher.”

Rulings[ | ]

  • The spell with cipher is encoded on the creature as part of that spell's resolution, just after the spell's other effects. That card goes directly from the stack to exile. It never goes to the graveyard.
  • You choose the creature as the spell resolves. The cipher ability doesn't target that creature, although the spell with cipher may target that creature (or a different creature) because of its other abilities.
  • If the spell with cipher is countered, none of its effects will happen, including cipher. The card will go to its owner's graveyard and won't be encoded on a creature.
  • If the creature leaves the battlefield, the exiled card will no longer be encoded on any creature. It will stay exiled.
  • If you want to encode the card with cipher onto a noncreature permanent such as a Keyrune that can turn into a creature, that permanent has to be a creature before the spell with cipher starts resolving. You can choose only a creature to encode the card onto.
  • The copy of the card with cipher is created in and cast from exile.
  • You cast the copy of the card with cipher during the resolution of the triggered ability. Ignore timing restrictions based on the card's type.
  • If you choose not to cast the copy, or you can't cast it (perhaps because there are no legal targets available), the copy will cease to exist the next time state-based actions are performed. You won't get a chance to cast the copy at a later time.
  • The exiled card with cipher grants a triggered ability to the creature it's encoded on. If that creature loses that ability and subsequently deals combat damage to a player, the triggered ability won't trigger. However, the exiled card will continue to be encoded on that creature.
  • If another player gains control of the creature, that player will control the triggered ability. That player will create a copy of the encoded card and may cast it.
  • If a creature with an encoded card deals combat damage to more than one player simultaneously (perhaps because some of the combat damage was redirected), the triggered ability will trigger once for each player it deals combat damage to. Each ability will create a copy of the exiled card and allow you to cast it.

Example[ | ]

Example

Whispering Madness {2}{U}{B}
Sorcery
Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

References[ | ]

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