Confidence:StrongSolidPlausibleTentativeSpeculative

• Minsc & Boo, Timeless Heroes

  2RG

  Legendary Planeswalker — MinscGR

  Death pair: both cards trigger on creature death. In a sacrifice-heavy deck they reinforce each other; on their own they fire once per death.
• Chevill, Bane of Monsters

  BG

  Legendary Creature — Human RogueBG

  Havoc Demon produces damage that can kill creatures, enabling Chevill, Bane of Monsters's death-trigger or removal payoff.
• Banon, the Returners' Leader

  RW

  Legendary Creature — Human Cleric RebelRW

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Mari, the Killing Quill

  1BB

  Legendary Creature — Vampire AssassinB

  Havoc Demon produces damage that can kill creatures, enabling Mari, the Killing Quill's death-trigger or removal payoff.
• Gravecrawler

  B

  Creature — ZombieB

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Kraven the Hunter

  1BG

  Legendary Creature — Human Warrior VillainBG

  Havoc Demon produces damage that can kill creatures, enabling Kraven the Hunter's death-trigger or removal payoff.
• Undead Sprinter

  BR

  Creature — ZombieBR

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Toshiro Umezawa

  1BB

  Legendary Creature — Human SamuraiB

  Havoc Demon produces damage that can kill creatures, enabling Toshiro Umezawa's death-trigger or removal payoff.
• Malicious Affliction

  BB

  InstantB

  Havoc Demon produces damage that can kill creatures, enabling Malicious Affliction's death-trigger or removal payoff.
• Timeline Culler

  BB

  Creature — Drix WarlockB

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Glissa, the Traitor

  BGG

  Legendary Creature — Phyrexian Zombie ElfBG

  Havoc Demon produces damage that can kill creatures, enabling Glissa, the Traitor's death-trigger or removal payoff.
• Anafenza, Unyielding Lineage

  2W

  Legendary Creature — Spirit SoldierW

  Both cards trigger when a creature dies — they fire together.
• Emeritus of Woe // Demonic Tutor

  3B1B

  Creature — Vampire Warlock // SorceryB

  Havoc Demon produces damage that can kill creatures, enabling Emeritus of Woe's death-trigger or removal payoff.
• Lagomos, Hand of Hatred

  1BR

  Legendary Creature — Human ShamanBR

  Havoc Demon produces damage that can kill creatures, enabling Lagomos, Hand of Hatred's death-trigger or removal payoff.
• Tevesh Szat, Doom of Fools

  4B

  Legendary Planeswalker — SzatB

  Havoc Demon produces damage that can kill creatures, enabling Tevesh Szat, Doom of Fools's death-trigger or removal payoff.
• Assault Intercessor

  1WB

  Creature — Astartes WarriorBW

  Havoc Demon produces damage that can kill creatures, enabling Assault Intercessor's death-trigger or removal payoff.
• Tenacious Underdog

  1B

  Creature — Human WarriorB

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Shelob, Child of Ungoliant

  4BG

  Legendary Creature — Spider DemonBG

  Both cards trigger when a creature dies — they fire together.
• Skaab Ruinator

  1UU

  Creature — Zombie HorrorU

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Nurgle's Rot

  B

  Enchantment — AuraB

  Havoc Demon produces damage that can kill creatures, enabling Nurgle's Rot's death-trigger or removal payoff.
• Squee, the Immortal

  1RR

  Legendary Creature — GoblinR

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Avarice Amulet

  4

  Artifact — EquipmentC

  Havoc Demon produces damage that can kill creatures, enabling Avarice Amulet's death-trigger or removal payoff.
• Oathsworn Vampire

  1B

  Creature — Vampire KnightB

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Sméagol, Helpful Guide

  1BG

  Legendary Creature — Halfling HorrorBG

  Havoc Demon produces damage that can kill creatures, enabling Sméagol, Helpful Guide's death-trigger or removal payoff.
• Bonecache Overseer

  B

  Creature — Squirrel WarlockB

  Havoc Demon produces damage that can kill creatures, enabling Bonecache Overseer's death-trigger or removal payoff.