Confidence:StrongSolidPlausibleTentativeSpeculative

• Obsessive Pursuit

  1B

  EnchantmentB

  Both cards trigger when a permanent attacks — they fire together.
• Isshin, Two Heavens as One

  RWB

  Legendary Creature — Human SamuraiBRW

  Isshin, Two Heavens as One makes Shiny Impetus's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Arna Kennerüd, Skycaptain

  2WUB

  Legendary Creature — Human KnightBUW

  Both cards trigger when a permanent attacks — they fire together.
• Windcrag Siege

  1RW

  EnchantmentRW

  Windcrag Siege makes Shiny Impetus's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Hermes, Overseer of Elpis

  3U

  Legendary Creature — Elder WizardU

  Both cards trigger when a permanent attacks — they fire together.
• Bonny Pall, Clearcutter

  3GUU

  Legendary Creature — Giant ScoutGU

  Both cards trigger when a permanent attacks — they fire together.
• MacCready, Lamplight Mayor

  WB

  Legendary Creature — Human AdvisorBW

  Both cards trigger when a permanent attacks — they fire together.
• Sarkhan the Masterless

  3RR

  Legendary Planeswalker — SarkhanR

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

  2WUB

  Legendary Creature — HorrorBUW

  Both cards trigger when a permanent attacks — they fire together.
• Storm, Queen of Wakanda

  3GW

  Legendary Creature — Mutant Noble HeroGW

  Both cards trigger when a permanent attacks — they fire together.
• Dreadhorde Invasion

  1B

  EnchantmentB

  Both cards trigger when a permanent attacks — they fire together.
• Invasion of Tarkir // Defiant Thundermaw

  1R

  Battle — Siege // Creature — DragonR

  Both cards trigger when a permanent attacks — they fire together.
• Soaring Thought-Thief

  UB

  Creature — Human RogueBU

  Both cards trigger when a permanent attacks — they fire together.
• Amazing Alliance

  1WW

  EnchantmentW

  Both cards trigger when a permanent attacks — they fire together.
• Powerstone Minefield

  2RW

  EnchantmentRW

  Both cards trigger when a permanent attacks — they fire together.
• Raking Canopy

  1GG

  EnchantmentG

  Both cards trigger when a permanent attacks — they fire together.
• Aurelia, the Law Above

  3RW

  Legendary Creature — AngelRW

  Both cards trigger when a permanent attacks — they fire together.
• Alibou, Ancient Witness

  3RW

  Legendary Artifact Creature — GolemRW

  Both cards trigger when a permanent attacks — they fire together.
• Selfless Samurai

  1W

  Creature — Fox SamuraiW

  Both cards trigger when a permanent attacks — they fire together.
• Misty Mountains Raider

  4R

  Creature — Goblin SoldierR

  Both cards trigger when a permanent attacks — they fire together.
• Palazzo Archers

  2G

  Creature — Human ArcherG

  Both cards trigger when a permanent attacks — they fire together.
• Path of Bravery

  2W

  EnchantmentW

  Both cards trigger when a permanent attacks — they fire together.
• Guide of Souls

  W

  Creature — Human ClericW

  Both cards trigger when a permanent attacks — they fire together.
• Craig Boone, Novac Guard

  1RW

  Legendary Creature — Human SoldierRW

  Both cards trigger when a permanent attacks — they fire together.
• Oath of Kaya

  1WB

  Legendary EnchantmentBW

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