Confidence:StrongSolidPlausibleTentativeSpeculative

• The Meathook Massacre

  XBB

  Legendary EnchantmentB

  Hapless Researcher is a sacrifice outlet, enabling The Meathook Massacre's death or sacrifice trigger.
• The Serpent Society

  1BG

  Legendary Creature — Human Snake VillainBG

  Hapless Researcher is a sacrifice outlet, enabling The Serpent Society's death or sacrifice trigger.
• Bequeathal

  G

  Enchantment — AuraG

  Hapless Researcher is a sacrifice outlet, enabling Bequeathal's death or sacrifice trigger.
• Syr Vondam, Sunstar Exemplar

  WB

  Legendary Creature — Human KnightBW

  Hapless Researcher is a sacrifice outlet, enabling Syr Vondam, Sunstar Exemplar's death or sacrifice trigger.
• Shaile, Dean of Radiance // Embrose, Dean of Shadow

  1W2BB

  Legendary Creature — Bird Cleric // Legendary Creature — Human WarlockBW

  Hapless Researcher is a sacrifice outlet, enabling Shaile, Dean of Radiance's death or sacrifice trigger.
• Malicious Affliction

  BB

  InstantB

  Hapless Researcher is a sacrifice outlet, enabling Malicious Affliction's death or sacrifice trigger.
• Enduring Renewal

  2WW

  EnchantmentW

  Hapless Researcher is a sacrifice outlet, enabling Enduring Renewal's death or sacrifice trigger.
• Emeritus of Woe // Demonic Tutor

  3B1B

  Creature — Vampire Warlock // SorceryB

  Hapless Researcher is a sacrifice outlet, enabling Emeritus of Woe's death or sacrifice trigger.
• Skullclamp

  1

  Artifact — EquipmentC

  Hapless Researcher is a sacrifice outlet, enabling Skullclamp's death or sacrifice trigger.
• Kaya's Ghostform

  B

  Enchantment — AuraB

  Hapless Researcher is a sacrifice outlet, enabling Kaya's Ghostform's death or sacrifice trigger.
• Ob Nixilis, Unshackled

  4BB

  Legendary Creature — DemonB

  Hapless Researcher is a sacrifice outlet, enabling Ob Nixilis, Unshackled's death or sacrifice trigger.
• Meltstrider Eulogist

  2G

  Creature — Insect SoldierG

  Hapless Researcher is a sacrifice outlet, enabling Meltstrider Eulogist's death or sacrifice trigger.
• Sticky Fingers

  R

  Enchantment — AuraR

  Hapless Researcher is a sacrifice outlet, enabling Sticky Fingers's death or sacrifice trigger.
• Elas il-Kor, Sadistic Pilgrim

  WB

  Legendary Creature — Phyrexian Kor ClericBW

  Hapless Researcher is a sacrifice outlet, enabling Elas il-Kor, Sadistic Pilgrim's death or sacrifice trigger.
• Skin Invasion // Skin Shedder

  R

  Enchantment — Aura // Creature — Insect HorrorR

  Hapless Researcher is a sacrifice outlet, enabling Skin Invasion's death or sacrifice trigger.
• Athreos, God of Passage

  1WB

  Legendary Enchantment Creature — GodBW

  Hapless Researcher is a sacrifice outlet, enabling Athreos, God of Passage's death or sacrifice trigger.
• Avarice Amulet

  4

  Artifact — EquipmentC

  Hapless Researcher is a sacrifice outlet, enabling Avarice Amulet's death or sacrifice trigger.
• Eater of Virtue

  1

  Legendary Artifact — EquipmentC

  Hapless Researcher is a sacrifice outlet, enabling Eater of Virtue's death or sacrifice trigger.
• Ghost Lantern // Bind Spirit

  B1B

  Artifact — Equipment // Instant — AdventureB

  Hapless Researcher is a sacrifice outlet, enabling Ghost Lantern's death or sacrifice trigger.
• Garna, Bloodfist of Keld

  1BRR

  Legendary Creature — Human BerserkerBR

  Hapless Researcher is a sacrifice outlet, enabling Garna, Bloodfist of Keld's death or sacrifice trigger.
• Thijarian Witness

  1G

  Creature — Alien ClericG

  Hapless Researcher is a sacrifice outlet, enabling Thijarian Witness's death or sacrifice trigger.
• Haruspex

  3G

  Creature — TyranidG

  Hapless Researcher is a sacrifice outlet, enabling Haruspex's death or sacrifice trigger.
• Grave Venerations

  3B

  EnchantmentB

  Hapless Researcher is a sacrifice outlet, enabling Grave Venerations's death or sacrifice trigger.
• Sméagol, Helpful Guide

  1BG

  Legendary Creature — Halfling HorrorBG

  Hapless Researcher is a sacrifice outlet, enabling Sméagol, Helpful Guide's death or sacrifice trigger.
• Bonecache Overseer

  B

  Creature — Squirrel WarlockB

  Hapless Researcher is a sacrifice outlet, enabling Bonecache Overseer's death or sacrifice trigger.