Confidence:StrongSolidPlausibleTentativeSpeculative

• Whip of Erebos

  2BB

  Legendary Enchantment ArtifactB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Slimefoot and Squee

  BRG

  Legendary Creature — Fungus GoblinBGR

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Bonebind Orator

  1B

  Creature — Squirrel Warlock BardB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Phyrexian Reclamation

  B

  EnchantmentB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Kenrith, the Returned King

  4W

  Legendary Creature — Human NobleBGRUW

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Order of Whiteclay

  1WW

  Creature — Kithkin ClericW

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Othelm, Sigardian Outcast

  1GW

  Legendary Creature — HumanGW

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Nezumi Graverobber // Nighteyes the Desecrator

  1B

  Creature — Rat Rogue // Legendary Creature — Rat WizardB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Adun Oakenshield

  BRG

  Legendary Creature — Human KnightBGR

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Soul of Innistrad

  4BB

  Creature — AvatarB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Reaping Willow

  1W/BW/BW/B

  Creature — Treefolk ClericBW

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Geth, Thane of Contracts

  1BB

  Legendary Creature — Phyrexian ZombieB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Gravewaker

  4BB

  Creature — Bird SpiritB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Endbringer's Revel

  2B

  EnchantmentB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Ruthless Technomancer

  3B

  Creature — Human WizardB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Draugr Recruiter

  3B

  Creature — Zombie ClericB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Unliving Legionnaire

  3B

  Creature — Vampire VillainB

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Cabal Surgeon

  2BB

  Creature — Human MinionB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Dreams of the Dead

  3U

  EnchantmentU

  Sacrifice-recursion engine: one card repeatedly returns the other from the graveyard, and the returned card sacrifices itself again for value — the Auriok Salvagers + Black Lotus shape.
• Undertaker

  1B

  Creature — Human SpellshaperB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Strands of Night

  2BB

  EnchantmentB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• Tortured Existence

  B

  EnchantmentB

  Sacrifice-recursion with a catch: one card can return the other from the graveyard, but the return ability has an extra cost (sacrificing another creature, discarding a card, or tapping with no way to untap) the pair can't pay by itself. It works once — something else must keep supplying the fodder to make it repeatable.
• 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.
• Vengeful Devil

  1R

  Creature — DevilR

  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.
• Extricator of Sin // Extricator of Flesh

  2W

  Creature — Human Cleric // Creature — Eldrazi HorrorW

  Both cards produce the same kind of effect (shared token subtype).