Confidence:StrongSolidPlausibleTentativeSpeculative

• Saheeli, the Sun's Brilliance

  UR

  Legendary Creature — Human ArtificerRU

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• The Jolly Balloon Man

  1RW

  Legendary Creature — Human ClownRW

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Feldon of the Third Path

  1RR

  Legendary Creature — Human ArtificerR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Tempestra, Dame of Games

  1R

  Legendary Creature — Elemental IllusionR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Splinter Twin

  2RR

  Enchantment — AuraR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Orthion, Hero of Lavabrink

  3R

  Legendary Creature — Human SoldierR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Kiki-Jiki, Mirror Breaker

  2RRR

  Legendary Creature — Goblin ShamanR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Jaxis, the Troublemaker

  3R

  Legendary Creature — Human WarriorR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Summon: Good King Mog XII

  4W

  Enchantment Creature — Saga MoogleW

  Both cards trigger when you cast a spell — they fire together.
• Loki, God of Lies

  1RR

  Legendary Creature — God Sorcerer VillainR

  Both cards trigger when you cast a spell — they fire together.
• Dino DNA

  1

  ArtifactC

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Song of the Worldsoul

  4WW

  EnchantmentW

  Both cards trigger when you cast a spell — they fire together.
• Flux Channeler

  2U

  Creature — Human WizardU

  Both cards trigger when you cast a spell — they fire together.
• Rionya, Fire Dancer

  3RR

  Legendary Creature — Human WizardR

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Flayer of Loyalties

  8CC

  Creature — EldraziC

  Both cards trigger when you cast a spell — they fire together.
• Helm of the Host

  4

  Legendary Artifact — EquipmentC

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Offspring's Revenge

  2RWB

  EnchantmentBRW

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Akroan Conscriptor

  4R

  Creature — Human ShamanR

  Both cards trigger when you cast a spell — they fire together.
• Vesuvan Duplimancy

  3U

  EnchantmentU

  Both cards trigger when you cast a spell — they fire together.
• Ashling, the Limitless

  2R

  Legendary Creature — Elemental SorcererBGRUW

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Inexorable Tide

  3UU

  EnchantmentU

  Both cards trigger when you cast a spell — they fire together.
• Back from the Brink

  4UU

  EnchantmentU

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Mark of Eviction

  U

  Enchantment — AuraU

  Mark of Eviction bounces a permanent, enabling Chakram Retriever's recast / spell-cast trigger.
• Ugin, Eye of the Storms

  7

  Legendary Planeswalker — UginC

  Both cards trigger when you cast a spell — they fire together.
• Riku of Many Paths

  GUR

  Legendary Creature — Human WizardGRU

  Both cards trigger when you cast a spell — they fire together.

• WithTempestra, Dame of Games1RR

  Copy chain: each card copies the other (or both copy a third), generating arbitrary copies. These two can't keep the loop going alone — add one of these to complete it:

  Rose Room Treasurer3RSharp-Eyed Rookie1GKingpin, Wilson Fisk3BNuka-Cola Vending Machine3Gemcutter Buccaneer3RGala Greeters1G
  Show cards