Confidence:StrongSolidPlausibleTentativeSpeculative

• Mikaeus, the Unhallowed✓

  3BBB

  Legendary Creature — Zombie ClericB

  Death replacement: a death-replacement grant on one card lets the other repeatedly die-and-return for combo (Mikaeus + Walking Ballista class).
• Chevill, Bane of Monsters

  BG

  Legendary Creature — Human RogueBG

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Chevill, Bane of Monsters's death or sacrifice trigger.
• Bloodline Recollector // Ancestral Craving

  1BB

  Creature — Vampire Warlock // InstantB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Bloodline Recollector's death or sacrifice trigger.
• The Meathook Massacre

  XBB

  Legendary EnchantmentB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling The Meathook Massacre's death or sacrifice trigger.
• The Serpent Society

  1BG

  Legendary Creature — Human Snake VillainBG

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling The Serpent Society's death or sacrifice trigger.
• Mari, the Killing Quill

  1BB

  Legendary Creature — Vampire AssassinB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Mari, the Killing Quill's death or sacrifice trigger.
• Bequeathal

  G

  Enchantment — AuraG

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Bequeathal's death or sacrifice trigger.
• Syr Vondam, Sunstar Exemplar

  WB

  Legendary Creature — Human KnightBW

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Syr Vondam, Sunstar Exemplar's death or sacrifice trigger.
• Kraven the Hunter

  1BG

  Legendary Creature — Human Warrior VillainBG

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Kraven the Hunter's death or sacrifice trigger.
• Toshiro Umezawa

  1BB

  Legendary Creature — Human SamuraiB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Toshiro Umezawa's death or sacrifice trigger.
• Shaile, Dean of Radiance // Embrose, Dean of Shadow

  1W2BB

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

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Shaile, Dean of Radiance's death or sacrifice trigger.
• Malicious Affliction

  BB

  InstantB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Malicious Affliction's death or sacrifice trigger.
• Enduring Renewal

  2WW

  EnchantmentW

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Enduring Renewal's death or sacrifice trigger.
• Glissa, the Traitor

  BGG

  Legendary Creature — Phyrexian Zombie ElfBG

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Glissa, the Traitor's death or sacrifice trigger.
• Liliana, Heretical Healer // Liliana, Defiant Necromancer

  1BB

  Legendary Creature — Human Cleric // Legendary Planeswalker — LilianaB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Liliana, Heretical Healer's death or sacrifice trigger.
• Skullclamp

  1

  Artifact — EquipmentC

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Skullclamp's death or sacrifice trigger.
• Kaya's Ghostform

  B

  Enchantment — AuraB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Kaya's Ghostform's death or sacrifice trigger.
• Pain Distributor

  2R

  Creature — Devil CitizenR

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Pain Distributor's death or sacrifice trigger.
• Ob Nixilis, Unshackled

  4BB

  Legendary Creature — DemonB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Ob Nixilis, Unshackled's death or sacrifice trigger.
• Disciple of the Vault

  B

  Creature — Human ClericB

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Disciple of the Vault's death or sacrifice trigger.
• Meltstrider Eulogist

  2G

  Creature — Insect SoldierG

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Meltstrider Eulogist's death or sacrifice trigger.
• Assault Intercessor

  1WB

  Creature — Astartes WarriorBW

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Assault Intercessor's death or sacrifice trigger.
• Sifa Grent

  3BR

  Legendary Planeswalker — SifaBR

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Sifa Grent's death or sacrifice trigger.
• Sticky Fingers

  R

  Enchantment — AuraR

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

  WB

  Legendary Creature — Phyrexian Kor ClericBW

  Hammerhead, Maggia Boss is a sacrifice outlet, enabling Elas il-Kor, Sadistic Pilgrim's death or sacrifice trigger.

• WithMikaeus, the Unhallowed3BBBB

  Death replacement: a death-replacement effect on one card lets the other survive lethal events. These two can't keep the loop going alone — add one of these to complete it:

  Nurgle's RotBBaloth Prime3GThe Sibsig CeremonyBBBXathrid Necromancer2BAvacyn's Collar1Golem Foundry3
  Show cards