Confidence:StrongSolidPlausibleTentativeSpeculative

• Song of Creation

  1GUR

  EnchantmentGRU

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

  1U

  Creature — Phyrexian RogueU

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

  GU

  Creature — Fractal CrabGU

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

  4GU

  EnchantmentGU

  Both cards trigger when a spell is cast — they fire together.
• Quandrix Apprentice

  GU

  Creature — Human WizardGU

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

  1G

  EnchantmentG

  Both cards trigger when a spell is cast — they fire together.
• Ugin, Eye of the Storms

  7

  Legendary Planeswalker — UginC

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

  GW

  Legendary Creature — Human DruidBGRUW

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

  2U

  Creature — Phyrexian SharkU

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

  1UR

  EnchantmentRU

  Both cards trigger when a spell is cast — they fire together.
• Hydro-Man, Fluid Felon

  UU

  Legendary Creature — Elemental VillainU

  Both cards trigger when a spell is cast — they fire together.
• Pia Nalaar, Consul of Revival

  RW

  Legendary Creature — Human ArtificerRW

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

  1URW

  Legendary Creature — Human Spirit DragonRUW

  Both cards trigger when a spell is cast — they fire together.
• Shanid, Sleepers' Scourge

  1RWB

  Legendary Creature — Human KnightBRW

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

  1UBR

  Legendary Creature — Human NobleBRU

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

  UBB

  Creature — Elemental NightmareBU

  Both cards trigger when a spell is cast — they fire together.
• Raff, Weatherlight Stalwart

  WU

  Legendary Creature — Human WizardUW

  Both cards trigger when a spell is cast — they fire together.
• Celestial Kirin

  2WW

  Legendary Creature — Kirin SpiritW

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

  GUR

  Legendary Creature — Human WizardGRU

  Both cards trigger when a spell is cast — they fire together.
• The Circle of Loyalty

  4WW

  Legendary ArtifactW

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

  1W

  Legendary Creature — Human SoldierW

  Both cards trigger when a spell is cast — they fire together.
• Fandaniel, Telophoroi Ascian

  4B

  Legendary Creature — Elder WizardB

  Both cards trigger when a spell is cast — they fire together.
• Codie, Ravenous Codex

  3

  Legendary Artifact Creature — Book ConstructBGRUW

  Both cards trigger when a spell is cast — they fire together.
• Rite of the Dragoncaller

  4RR

  EnchantmentR

  Both cards trigger when a spell is cast — they fire together.
• Phyrexian Dreadnought

  1

  Artifact Creature — Phyrexian DreadnoughtC

  Echo Storm creates token copies, feeding Phyrexian Dreadnought's ETB or copy payoff.