Confidence:StrongSolidPlausibleTentativeSpeculative

• Veyran, Voice of Duality

  1UR

  Legendary Creature — Efreet WizardRU

  Veyran, Voice of Duality makes Thundering Mightmare's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Kambal, Consul of Allocation

  1WB

  Legendary Creature — Human AdvisorBW

  Both cards trigger when a spell is cast — they fire together.
• Ruric Thar, the Unbowed

  4RG

  Legendary Creature — Ogre WarriorGR

  Both cards trigger when a spell is cast — they fire together.
• Shadow in the Warp

  1RG

  EnchantmentGR

  Both cards trigger when a spell is cast — they fire together.
• Gollum, Riddle Master

  1B

  Legendary Creature — Halfling HorrorB

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

  2R

  Creature — DinosaurR

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

  1R

  Creature — VampireR

  Both cards trigger when a spell is cast — they fire together.
• Tokka & Rahzar, Terrible Twos

  B/RB/R

  Legendary Creature — Turtle Wolf MutantBR

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

  1R

  EnchantmentR

  Both cards trigger when a spell is cast — they fire together.
• Kaervek the Merciless

  5BR

  Legendary Creature — Human ShamanBR

  Both cards trigger when a spell is cast — they fire together.
• Eidolon of the Great Revel

  RR

  Enchantment Creature — SpiritR

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

  4

  Artifact Creature — GolemC

  Roaming Throne makes Thundering Mightmare's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Hearthborn Battler

  2R

  Creature — Lizard WarlockR

  Both cards trigger when a spell is cast — they fire together.
• Curse of Shaken Faith

  1R

  Enchantment — Aura CurseR

  Both cards trigger when a spell is cast — they fire together.
• Ishi-Ishi, Akki Crackshot

  1R

  Legendary Creature — Goblin WarriorR

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

  3BB

  EnchantmentB

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

  1W

  EnchantmentW

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

  2R

  Creature — Minotaur PilotR

  Both cards trigger when a spell is cast — they fire together.
• Mirror Room // Fractured Realm

  2U5UU

  Enchantment — Room // Enchantment — RoomU

  Mirror Room makes Thundering Mightmare's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Scab-Clan Berserker

  1RR

  Creature — Human BerserkerR

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

  GW

  Creature — Cat SoldierGW

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

  U

  Creature — Merfolk WizardU

  Both cards trigger when a spell is cast — they fire together.
• Mondronen Shaman // Tovolar's Magehunter

  3R

  Creature — Human Shaman Werewolf // Creature — WerewolfR

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

  5

  ArtifactC

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

  1U

  Artifact — EquipmentU

  Wizard's Staff makes Thundering Mightmare's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.