Confidence:StrongSolidPlausibleTentativeSpeculative

• Powerstone Minefield

  2RW

  EnchantmentRW

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

  2

  Artifact — EquipmentC

  Both cards trigger when a permanent attacks — they fire together.
• Dawnsire, Sunstar Dreadnought

  5

  Legendary Artifact — SpacecraftC

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

  2W

  Enchantment — AuraW

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

  4R

  Enchantment — AuraR

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

  1B

  EnchantmentB

  Both cards trigger when a permanent attacks — they fire together.
• 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.
• Bard, Heir of Girion

  2WU

  Legendary Creature — Human ArcherUW

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

  B

  SorceryB

  Reanimate puts Harbin, Vanguard Aviator onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• 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.
• Winota, Joiner of Forces

  2RW

  Legendary Creature — Human WarriorRW

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

  W

  SorceryW

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

  B

  SorceryB

  Unearth puts Harbin, Vanguard Aviator onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• 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.
• Cloud, Ex-SOLDIER

  2RGW

  Legendary Creature — Human Soldier MercenaryGRW

  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 Harbin, Vanguard Aviator 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.
• Synth Eradicator

  2R

  Artifact Creature — Synth SoldierR

  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 Harbin, Vanguard Aviator's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Hooded Blightfang

  2B

  Creature — SnakeB

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

  2WW

  Creature — Cat SoldierW

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