Confidence:StrongSolidPlausibleTentativeSpeculative

• Reanimate

  B

  SorceryB

  Reanimate puts A-Guildsworn Prowler onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Helping Hand

  W

  SorceryW

  Helping Hand puts A-Guildsworn Prowler onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unearth

  B

  SorceryB

  Unearth puts A-Guildsworn Prowler onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts A-Guildsworn Prowler onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Bolas's Citadel

  3BBB

  Legendary ArtifactB

  Bolas's Citadel is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• My Precious // Allure of Power

  31B

  Legendary Artifact — Equipment // Instant — AdventureB

  My Precious is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Grimgrin, Corpse-Born

  3UB

  Legendary Creature — Zombie WarriorBU

  Grimgrin, Corpse-Born is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Fiend Artisan

  B/GB/G

  Creature — NightmareBG

  Fiend Artisan is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Zimone and Dina

  BGU

  Legendary Creature — Human DryadBGU

  Zimone and Dina is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• The Eternal Wanderer

  4WW

  Legendary PlaneswalkerW

  The Eternal Wanderer wipes or mass-sacrifices creatures, and A-Guildsworn Prowler profits when creatures die — or comes back from the wipe itself.
• Garruk Relentless // Garruk, the Veil-Cursed

  3G

  Legendary Planeswalker — Garruk // Legendary Planeswalker — GarrukBG

  Garruk Relentless is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Liliana, Dreadhorde General

  4BB

  Legendary Planeswalker — LilianaB

  Liliana, Dreadhorde General wipes or mass-sacrifices creatures, and A-Guildsworn Prowler profits when creatures die — or comes back from the wipe itself.
• Teysa Karlov

  2WB

  Legendary Creature — Human AdvisorBW

  Teysa Karlov makes A-Guildsworn Prowler's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• The Rise of Sozin // Fire Lord Sozin

  4BB

  Enchantment — Saga // Legendary Creature — Human NobleB

  The Rise of Sozin wipes or mass-sacrifices creatures, and A-Guildsworn Prowler profits when creatures die — or comes back from the wipe itself.
• Wight of the Reliquary

  BG

  Creature — Zombie KnightBG

  Wight of the Reliquary is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Amalia Benavides Aguirre

  WB

  Legendary Creature — Vampire ScoutBW

  Amalia Benavides Aguirre wipes or mass-sacrifices creatures, and A-Guildsworn Prowler profits when creatures die — or comes back from the wipe itself.
• The Phasing of Zhalfir

  2UU

  Enchantment — SagaU

  The Phasing of Zhalfir wipes or mass-sacrifices creatures, and A-Guildsworn Prowler profits when creatures die — or comes back from the wipe itself.
• Slaughter the Strong

  1WW

  SorceryW

  Slaughter the Strong wipes or mass-sacrifices creatures, and A-Guildsworn Prowler profits when creatures die — or comes back from the wipe itself.
• Hidetsugu, Devouring Chaos

  3B

  Legendary Creature — Ogre DemonBR

  Hidetsugu, Devouring Chaos is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Razaketh, the Foulblooded

  5BBB

  Legendary Creature — DemonB

  Razaketh, the Foulblooded is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Jerren, Corrupted Bishop // Ormendahl, the Corrupter

  2B

  Legendary Creature — Human Cleric // Legendary Creature — DemonB

  Jerren, Corrupted Bishop is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• A-Skyclave Shadowcat

  2B

  Creature — Cat HorrorB

  A-Skyclave Shadowcat is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Eaten Alive

  B

  SorceryB

  Eaten Alive is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Extus, Oriq Overlord // Awaken the Blood Avatar

  1WBB6BR

  Legendary Creature — Human Warlock // SorceryBRW

  Extus, Oriq Overlord is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.
• Ayara, First of Locthwain

  BBB

  Legendary Creature — Elf NobleB

  Ayara, First of Locthwain is a sacrifice outlet, enabling A-Guildsworn Prowler's death or sacrifice trigger.