Confidence:StrongSolidPlausibleTentativeSpeculative

• Rodolf Duskbringer

  5B

  Legendary Creature — Vampire AngelBW

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Storied Veteran

  B

  Creature — Klingon AdvisorB

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Merieke Ri Berit

  WUB

  Legendary Creature — HumanBUW

  Merieke Ri Berit temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Varchild, Betrayer of Kjeldor

  2R

  Legendary Creature — Human KnightR

  Varchild, Betrayer of Kjeldor temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Edea, Possessed Sorceress

  2UBR

  Legendary Creature — Human WarlockBRU

  Edea, Possessed Sorceress temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Undead Sprinter

  BR

  Creature — ZombieBR

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Nicol Bolas, Planeswalker

  4UBBR

  Legendary Planeswalker — BolasBRU

  Nicol Bolas, Planeswalker temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Garland, Royal Kidnapper

  2UB

  Legendary Creature — Human KnightBU

  Garland, Royal Kidnapper temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Captivating Glance

  2U

  Enchantment — AuraU

  Captivating Glance temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Detective's Phoenix

  2R

  Enchantment Creature — PhoenixR

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• The Beast, Deathless Prince

  2BR

  Legendary Creature — DemonBR

  The Beast, Deathless Prince temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• The Nipton Lottery

  2BR

  SorceryBR

  The Nipton Lottery temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Timeline Culler

  BB

  Creature — Drix WarlockB

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Chandra, Flameshaper

  5RR

  Legendary Planeswalker — ChandraR

  Copy engine: one card makes copies of a creature — once a turn, or once for each time you pay its cost — and each copy pays off: the creature's enter-the-battlefield effect fires again, or the hasty copy uses its tap ability. Real, repeatable value — every copy has its turn or its price, so it never goes infinite on its own.
• The Wrath of Khan

  2R

  Enchantment — SagaR

  The Wrath of Khan temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Hogaak, Arisen Necropolis

  5B/GB/G

  Legendary Creature — AvatarBG

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Hildibrand Manderville // Gentleman's Rise

  1W2B

  Legendary Creature — Human Detective // Instant — AdventureBW

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Tribute to Horobi // Echo of Death's Wail

  1B

  Enchantment — Saga // Enchantment Creature — SpiritB

  Tribute to Horobi temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Tenacious Underdog

  1B

  Creature — Human WarriorB

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• The Mighty Thor, Jane Foster

  1WU

  Legendary Creature — Human God HeroUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Skaab Ruinator

  1UU

  Creature — Zombie HorrorU

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Vault 87: Forced Evolution

  3GU

  Enchantment — SagaGU

  Vault 87: Forced Evolution temporarily takes control of an opponent's creature, and Arbiter of Woe sacrifices it — the opponent loses the permanent for good.
• Thassa, Deep-Dwelling

  3U

  Legendary Enchantment Creature — GodU

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Mirrorhall Mimic // Ghastly Mimicry

  3U

  Creature — Spirit // Enchantment — AuraU

  One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
• The Mind Stone

  1W

  Legendary Artifact — Infinity StoneW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.