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6 Cards Found

AI 🤖 Find me cards equivalent to: Theoretical Duplication

Some blue cards similar to Theoretical Duplication (copies a creature when an opponent's nontoken creature enters):

  • Followed Footsteps – Enchants a creature and makes a token copy at upkeep.
  • Stolen Identity – Copies creatures via cipher ability.
  • Quasiduplicate – Copies your own creatures, with jump-start.
  • Spark Double – Copies your own creature or planeswalker with a bonus.
  • Cackling Counterpart – Instant that copies your own creature.


Reason: All these cards are blue and involve creating token copies of creatures. None trigger exactly on opponents' creatures like Theoretical Duplication, but mimic the copying effect.

Results:

Cackling Counterpart #72 Instant

Info

Color:
Identifies:
Cost:
Rarity: Rare
Converted Cost: 3
Power/Toughness: /
Types:
  • Instant
    • SubTypes:
    Languages:
    Layout:
    Normal
    Rank:
    Saltiness:
    Tokens:
    Copy

    Abilities/Keywords

    Flashback

    Rules

  • "Flashback [cost]" means "You may cast this card from your graveyard by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."
  • A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.
  • If a card with flashback is put into your graveyard during your turn, you can cast it if it's legal to do so before any other player can take any actions.
  • To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
  • You can cast a spell using flashback even if it was somehow put into your graveyard without having been cast.
  • You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using flashback only when you could normally cast a sorcery.
  • Any “enters” triggered ability of the copied creature will trigger when the token enters the battlefield. Any “as [this creature] enters” or “[this creature] enters with” abilities of the chosen creature will also work.
  • If the copied creature has {X} in its mana cost, X is considered to be 0.
  • If the copied creature is a token, the token that’s created copies the original characteristics of that token as stated by the effect that created the token.
  • If the copied creature is copying something else, then the token enters the battlefield as whatever that creature copied.
  • The token copies exactly what was printed on the original creature and nothing else (unless that creature is copying something else or is a token; see below). It doesn’t copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.

    • Prices

    Seller Price
    Tcgplayer 0.19 USD
    Cardmarket 0.26 EUR
    Cardsphere 0.18 USD

    Legalities

    Alchemy Brawl Commander Duel Future Gladiator Historic Legacy Modern Oathbreaker Oldschool Pauper Paupercommander Penny Pioneer Predh Premodern Standard Standardbrawl Timeless Vintage

    Text

    Create a token that's a copy of target creature you control. Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

    Followed Footsteps #111 Enchantment — Aura

    Info

    Color:
    Identifies:
    Cost:
    Rarity: Rare
    Converted Cost: 5
    Power/Toughness: /
    Types:
  • Enchantment
    • SubTypes:
  • Aura
    • Languages:
    Layout:
    Normal
    Rank:
    Saltiness:
    Tokens:
    Copy

    Abilities/Keywords

    Enchant

    Rules

  • Any "enters" abilities of the copied creature trigger when the creature tokens enter the battlefield. The creature tokens also have any "this enters with" or "as this enters" abilities that the copied creature has.
  • If Followed Footsteps and the enchanted creature leave the battlefield simultaneously (say via Upheaval or Akroma's Vengence somehow cast in response to the triggered ability), then a token copy of the creature that was enchanted when it was last on the battlefield is created. If Followed Foosteps did not enchant a creature when last on the battlefield as it went to the graveyard as a state-based action when the enchanted creature left the battlefield in response to the trigger, then no copy will get created.
  • If Followed Footsteps moves after it has triggered, you get a copy of the newly-enchanted creature.

    • Prices

    Seller Price
    Tcgplayer 3.19 USD / 5.82 USD
    Cardmarket 1.02 EUR / 2.83 EUR
    Cardkingdom 2.79 USD
    Cardsphere 2.96 USD

    Legalities

    Alchemy Brawl Commander Duel Future Gladiator Historic Legacy Modern Oathbreaker Oldschool Pauper Paupercommander Penny Pioneer Predh Premodern Standard Standardbrawl Timeless Vintage

    Text

    Enchant creature At the beginning of your upkeep, create a token that's a copy of enchanted creature.

    Quasiduplicate #51p Sorcery

    Variations: v1 v2

    Info

    Color:
    Identifies:
    Cost:
    Rarity: Rare
    Converted Cost: 3
    Power/Toughness: /
    Types:
  • Sorcery
    • SubTypes:
    Languages:
    Layout:
    Normal
    Rank:
    Saltiness:
    Tokens:
    Copy

    Abilities/Keywords

    Rules

  • A spell cast using jump-start will always be exiled afterward, whether it resolves, it's countered, or it leaves the stack in some other way.
  • Any enters-the-battlefield abilities of the copied creature will trigger when the token enters the battlefield. Any "As [this creature] enters the battlefield" or "[This creature] enters the battlefield with" abilities of the copied creature will also work.
  • If a card with jump-start is put into your graveyard during your turn, you'll be able to cast it right away if it's legal to do so, before an opponent can take any actions.
  • If an effect allows you to pay an alternative cost rather than a spell's mana cost, you may pay that alternative cost when you jump-start a spell. You'll still discard a card as an additional cost to cast it.
  • If the copied creature has {X} in its mana cost, X is 0.
  • If the copied creature is copying something else, the token enters the battlefield as whatever that creature is copying.
  • If the copied creature is itself a token, the token created by Quasiduplicate copies the original characteristics of that token as stated by the effect that created it.
  • The token copies exactly what is printed on the creature and nothing else (unless that creature is copying something else or is a token; see below). It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and/or Equipment attached to it, or any non-copy effects that changed its power, toughness, types, color, and so on.
  • You must still follow any timing restrictions and permissions when casting a spell with jump-start, including those based on the card's type. For instance, you can cast a sorcery using jump-start only when you could normally cast a sorcery.

    • Prices

    Seller Price
    Tcgplayer 1.2 USD / 2.4 USD
    Cardmarket 0.48 EUR / 0.76 EUR
    Cardkingdom 3.99 USD
    Cardsphere 1.12 USD

    Legalities

    Alchemy Brawl Commander Duel Future Gladiator Historic Legacy Modern Oathbreaker Oldschool Pauper Paupercommander Penny Pioneer Predh Premodern Standard Standardbrawl Timeless Vintage

    Text

    Create a token that's a copy of target creature you control. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

    Spark Double #62 Creature — Illusion

    Variations: v1 v2 v3 v4

    Info

    Color:
    Identifies:
    Cost:
    Rarity: Rare
    Converted Cost: 4
    Power/Toughness: 0/0
    Types:
  • Creature
    • SubTypes:
  • Illusion
    • Languages:
    Layout:
    Normal
    Rank:
    Saltiness:

    Rules

  • Any enters-the-battlefield abilities of the copied permanent will trigger when Spark Double enters the battlefield. Any “as [this permanent] enters the battlefield” or “[this permanent] enters the battlefield with” abilities of the chosen permanent will also work.
  • If Spark Double somehow enters the battlefield at the same time as another permanent, it can’t become a copy of that permanent. You may choose only a creature or planeswalker that’s already on the battlefield.
  • If it copies a planeswalker, Spark Double enters with the appropriate number of loyalty counters as printed on the card plus one. If it copies a creature, Spark Double enters with a +1/+1 counter on it, plus any counters that will be put on it from abilities it copied and other abilities of other objects.
  • If the chosen permanent is a token, Spark Double copies the original characteristics of that token as stated by the effect that created the token. Spark Double doesn’t become a token in this case.
  • If the chosen permanent is copying something else (for example, if the chosen permanent is another Spark Double), then Spark Double enters the battlefield as whatever the chosen permanent copied.
  • If the copied permanent has {X} in its mana cost, X is considered to be 0.
  • If the copied permanent is affected by a type-changing effect, Spark Double may enter the battlefield with different permanent types than the copied permanent currently has. Use the characteristics of Spark Double as it enters the battlefield, not of the copied permanent, to determine whether it enters with an additional counter on it. Notably, if Spark Double copies a Gideon planeswalker that’s a creature because its loyalty ability caused it to become a planeswalker creature, Spark Double enters as a noncreature planeswalker and doesn’t get a +1/+1 counter. On the other hand, if Spark Double copies Gideon Blackblade during your turn, Spark Double enters as a planeswalker creature and gets both kinds of counters.
  • Spark Double copies exactly what was printed on the original permanent (unless that permanent is copying something else or is a token; see below). It doesn’t copy whether that permanent is tapped or untapped, whether it has any counters on it or any Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.
  • Spark Double isn’t legendary if it copies a legendary permanent, and this exception is copiable. If something else copies Spark Double later, that copy also won’t be legendary. If you control two or more permanents with the same name but only one is legendary, the “legend rule” doesn’t apply.

    • Prices

    Seller Price
    Tcgplayer 8.14 USD / 7.5 USD
    Cardmarket 5.11 EUR / 5.16 EUR
    Cardkingdom 12.99 USD / 12.99 USD
    Cardsphere 6.45 USD

    Legalities

    Alchemy Brawl Commander Duel Future Gladiator Historic Legacy Modern Oathbreaker Oldschool Pauper Paupercommander Penny Pioneer Predh Premodern Standard Standardbrawl Timeless Vintage

    Text

    You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1counteron it if it's a creature, it enters with an additional loyaltycounteron it if it's a planeswalker, and it isn't legendary.

    Stolen Identity #233 Sorcery

    Info

    Color:
    Identifies:
    Cost:
    Rarity: Rare
    Converted Cost: 6
    Power/Toughness: /
    Types:
  • Sorcery
    • SubTypes:
    Languages:
    Layout:
    Normal
    Rank:
    Saltiness:
    Tokens:
    Copy

    Abilities/Keywords

    Cipher

    Rules

  • Any "enters" abilities of the copied permanent will trigger when the token enters the battlefield. Any "as [this permanent] enters" or "[this permanent] enters with" abilities of the chosen permanent will also work.
  • If the copied permanent has {X} in its mana cost, X is considered to be zero.
  • If the copied permanent is a token, the token that's created copies the original characteristics of that token as stated by the effect that put the token onto the battlefield.
  • If the copied permanent is copying something else (for example, if the copied creature is a Clone), then the token enters as whatever that creature copied.
  • If the token you create is a copy of a creature, you can exile Stolen Identity encoded on that token.
  • The token copies exactly what was printed on the original artifact or creature and nothing else (unless that permanent is copying something else or is a token; see below). It doesn't copy whether it is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.
  • 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.
  • 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 the creature leaves the battlefield, the exiled card will no longer be encoded on any creature. It will stay exiled.
  • If the spell with cipher doesn't resolve, 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 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.
  • 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.
  • 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.
  • 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 cast the copy of the card with cipher during the resolution of the triggered ability. Ignore timing restrictions based on the card's type.
  • 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.

    • Prices

    Seller Price
    Tcgplayer 0.43 USD
    Cardmarket 0.23 EUR
    Cardkingdom 0.69 USD
    Cardsphere 0.4 USD

    Legalities

    Alchemy Brawl Commander Duel Future Gladiator Historic Legacy Modern Oathbreaker Oldschool Pauper Paupercommander Penny Pioneer Predh Premodern Standard Standardbrawl Timeless Vintage

    Text

    Create a token that's a copy of target artifact or creature. 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.)

    Theoretical Duplication #112 Instant

    Info

    Color:
    Identifies:
    Cost:
    Rarity: Rare
    Converted Cost: 3
    Power/Toughness: /
    Types:
  • Instant
    • SubTypes:
    Languages:
    Layout:
    Normal
    Rank:
    Saltiness:
    Tokens:
    Copy

    Rules

  • No entries

    • Prices

    Seller Price
    Tcgplayer 0.58 USD
    Cardmarket 0.3 EUR
    Cardkingdom 0.69 USD
    Cardsphere 0.5 USD

    Legalities

    Alchemy Brawl Commander Duel Future Gladiator Historic Legacy Modern Oathbreaker Oldschool Pauper Paupercommander Penny Pioneer Predh Premodern Standard Standardbrawl Timeless Vintage

    Text

    Whenever a nontoken creature an opponent controls enters this turn, create a token that's a copy of that creature.

    Cackling Counterpart Instant Normal - ~$0.21

    Followed Footsteps Enchantment — Aura Normal - ~$3.1

    Quasiduplicate Sorcery Normal - ~$1.66

    Spark Double Creature — Illusion Normal - ~$8.33

    Stolen Identity Sorcery Normal - ~$0.44

    Theoretical Duplication Instant Normal - ~$0.52

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