Confidence:StrongSolidPlausibleTentativeSpeculative

• Season of Growth

  1G

  EnchantmentG

  Redoubled Stormsinger creates token copies, feeding Season of Growth's ETB or copy payoff.
• Spreading Plague

  4B

  EnchantmentB

  Redoubled Stormsinger creates token copies, feeding Spreading Plague's ETB or copy payoff.
• Obsessive Pursuit

  1B

  EnchantmentB

  Both cards trigger when a permanent attacks — they fire together.
• Tinybones Joins Up

  B

  Legendary EnchantmentB

  Redoubled Stormsinger creates token copies, feeding Tinybones Joins Up's ETB or copy payoff.
• Faramir, Steward of Gondor

  1WU

  Legendary Creature — Human NobleUW

  Redoubled Stormsinger creates token copies, feeding Faramir, Steward of Gondor's ETB or copy payoff.
• Ignoble Hierarch

  G

  Creature — Goblin ShamanBGR

  Both cards trigger when a permanent attacks — they fire together.
• Noble Hierarch

  G

  Creature — Human DruidGUW

  Both cards trigger when a permanent attacks — they fire together.
• Eye of Singularity

  3W

  World EnchantmentW

  Redoubled Stormsinger creates token copies, feeding Eye of Singularity's ETB or copy payoff.
• Reanimate

  B

  SorceryB

  Reanimate puts Redoubled Stormsinger onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Bard, Heir of Girion

  2WU

  Legendary Creature — Human ArcherUW

  Both cards trigger when a permanent attacks — they fire together.
• Kadena, Slinking Sorcerer

  1BGU

  Legendary Creature — Snake Wizard SorcererBGU

  Redoubled Stormsinger creates token copies, feeding Kadena, Slinking Sorcerer's ETB or copy payoff.
• Garruk, Curse Breaker

  3GG

  Legendary Planeswalker — GarrukG

  Both cards trigger when a permanent attacks — they fire together.
• Combat Calligrapher

  3W

  Creature — Bird ClericW

  Both cards trigger when a permanent attacks — they fire together.
• Helping Hand

  W

  SorceryW

  Helping Hand puts Redoubled Stormsinger onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unearth

  B

  SorceryB

  Unearth puts Redoubled Stormsinger onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Winota, Joiner of Forces

  2RW

  Legendary Creature — Human WarriorRW

  Both cards trigger when a permanent attacks — they fire together.
• Grist, Voracious Larva // Grist, the Plague Swarm

  G

  Legendary Creature — Insect // Legendary Planeswalker — GristBG

  Redoubled Stormsinger creates token copies, feeding Grist, Voracious Larva's ETB or copy payoff.
• Gallia of the Endless Dance

  RG

  Legendary Creature — SatyrGR

  Both cards trigger when a permanent attacks — they fire together.
• Jon Irenicus, Shattered One

  2UB

  Legendary Creature — Elf WizardBU

  Both cards trigger when a permanent attacks — they fire together.
• Clavileño, First of the Blessed

  1WB

  Legendary Creature — Vampire ClericBW

  Both cards trigger when a permanent attacks — they fire together.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Redoubled Stormsinger onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Twenty-Toed Toad

  3U

  Creature — Frog WizardU

  Both cards trigger when a permanent attacks — they fire together.
• Momo, Friendly Flier

  W

  Legendary Creature — Lemur Bat AllyW

  Redoubled Stormsinger creates token copies, feeding Momo, Friendly Flier's ETB or copy payoff.
• Isshin, Two Heavens as One

  RWB

  Legendary Creature — Human SamuraiBRW

  Isshin, Two Heavens as One makes Redoubled Stormsinger's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Fire Lord Zuko

  RWB

  Legendary Creature — Human Noble AllyBRW

  Redoubled Stormsinger creates token copies, feeding Fire Lord Zuko's ETB or copy payoff.