Confidence:StrongSolidPlausibleTentativeSpeculative

• Riku of Many Paths

  GUR

  Legendary Creature — Human WizardGRU

  Both cards trigger when you cast a spell — they fire together.
• Song of Creation

  1GUR

  EnchantmentGRU

  Both cards trigger when you cast a spell — they fire together.
• Jenson Carthalion, Druid Exile

  GW

  Legendary Creature — Human DruidBGRUW

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

  1U

  Creature — Phyrexian RogueU

  Both cards trigger when you cast a spell — they fire together.
• Geometer's Arthropod

  GU

  Creature — Fractal CrabGU

  Both cards trigger when you cast a spell — they fire together.
• Prosper, Tome-Bound

  2BR

  Legendary Creature — Tiefling WarlockBR

  Both cards trigger when you cast a spell — they fire together.
• Brigone, Soldier of Meletis

  1W

  Legendary Creature — Human SoldierW

  Both cards trigger when you cast a spell — they fire together.
• Cleon, Merry Champion

  2R

  Legendary Creature — Human SoldierR

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

  3RW

  Legendary Planeswalker — QuintoriusRW

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

  XGG

  Creature — Plant HydraG

  Both cards trigger when you cast a spell — they fire together.
• Season of Growth

  1G

  EnchantmentG

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

  4GU

  EnchantmentGU

  Both cards trigger when you cast a spell — they fire together.
• Court of Vantress

  2UU

  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.
• Pia Nalaar, Consul of Revival

  RW

  Legendary Creature — Human ArtificerRW

  Both cards trigger when you cast a spell — they fire together.
• The Lost and the Damned

  1UR

  EnchantmentRU

  Both cards trigger when you cast a spell — they fire together.
• Sage of Hours

  1U

  Creature — Human WizardU

  Both cards trigger when you cast a spell — they fire together.
• Shiko and Narset, Unified

  1URW

  Legendary Creature — Human Spirit DragonRUW

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

  UBB

  Creature — Elemental NightmareBU

  Both cards trigger when you cast a spell — they fire together.
• Lavinia, Foil to Conspiracy

  1W/UW/U

  Legendary Creature — Human DetectiveUW

  Both cards trigger when you cast a spell — they fire together.
• Mai, Scornful Striker

  1B

  Legendary Creature — Human Noble AllyB

  Both cards trigger when you cast a spell — they fire together.
• Chrome Host Seedshark

  2U

  Creature — Phyrexian SharkU

  Both cards trigger when you cast a spell — they fire together.
• Fire Lord Azula

  1UBR

  Legendary Creature — Human NobleBRU

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

  1R

  ArtifactR

  Both cards trigger when you cast a spell — they fire together.
• Gale, Waterdeep Prodigy

  2U

  Legendary Creature — Human WizardU

  Both cards trigger when you cast a spell — they fire together.
• General Ferrous Rokiric

  1RW

  Legendary Creature — Human SoldierRW

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