Confidence:StrongSolidPlausibleTentativeSpeculative

• Bolas's Citadel

  3BBB

  Legendary ArtifactB

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Retrofitter Foundry

  1

  ArtifactC

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Ruinous Waterbending

  1BB

  Sorcery — LessonB

  Both cards trigger when a creature dies — they fire together.
• Tarrian's Journal // The Tomb of Aclazotz

  1B

  Legendary Artifact — Book // Legendary Land — CaveB

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Bag of Devouring

  B

  ArtifactB

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Diamond Kaleidoscope

  4

  ArtifactC

  One-directional refresh: one card can untap permanents the other wants to reuse. Not self-sustaining on its own — the untapper has to keep showing up.
• Ajani, Nacatl Pariah // Ajani, Nacatl Avenger

  1W

  Legendary Creature — Cat Warrior // Legendary Planeswalker — AjaniRW

  Both cards trigger when a creature dies — they fire together.
• Chevill, Bane of Monsters

  BG

  Legendary Creature — Human RogueBG

  Both cards trigger when a creature dies — they fire together.
• Hateful Eidolon

  B

  Enchantment Creature — SpiritB

  Both cards trigger when a creature dies — they fire together.
• Shaile, Dean of Radiance // Embrose, Dean of Shadow

  1W2BB

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

  Both cards trigger when a creature dies — they fire together.
• Omnath, Locus of Rage

  3RRGG

  Legendary Creature — ElementalGR

  Both cards trigger when a creature dies — they fire together.
• The Serpent Society

  1BG

  Legendary Creature — Human Snake VillainBG

  Both cards trigger when a creature dies — they fire together.
• Quest for the Gravelord

  B

  EnchantmentB

  Both cards trigger when a creature dies — they fire together.
• Teysa, Opulent Oligarch

  1WB

  Legendary Creature — Human AdvisorBW

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

  1B

  Creature — Zombie SoldierB

  Both cards trigger when a creature dies — they fire together.
• Syr Vondam, Sunstar Exemplar

  WB

  Legendary Creature — Human KnightBW

  Both cards trigger when a creature dies — they fire together.
• Endless Evil

  2U

  Enchantment — AuraU

  Both cards trigger when a creature dies — they fire together.
• Edea, Possessed Sorceress

  2UBR

  Legendary Creature — Human WarlockBRU

  Both cards trigger when a creature dies — they fire together.
• Rampart Architect

  3G

  Creature — Elephant AdvisorG

  Both cards trigger when a creature dies — they fire together.
• Kraven the Hunter

  1BG

  Legendary Creature — Human Warrior VillainBG

  Both cards trigger when a creature dies — they fire together.
• Stone Haven Outfitter

  1W

  Creature — Kor Artificer AllyW

  Both cards trigger when a creature dies — they fire together.
• Rinoa, Angel Wing

  2W

  Legendary Creature — Human Rebel WarlockW

  Both cards trigger when a creature dies — they fire together.
• Enduring Renewal

  2WW

  EnchantmentW

  Both cards trigger when a creature dies — they fire together.
• Eater of Virtue

  1

  Legendary Artifact — EquipmentC

  Both cards trigger when a creature dies — they fire together.
• Illicit Masquerade

  3B

  EnchantmentB

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