Confidence:StrongSolidPlausibleTentativeSpeculative

• Ratchet, Field Medic // Ratchet, Rescue Racer

  2W

  Legendary Artifact Creature — Robot // Legendary Artifact — VehicleW

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Tameshi, Reality Architect

  2U

  Legendary Creature — Moonfolk WizardUW

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• The Mind Stone

  1W

  Legendary Artifact — Infinity StoneW

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Goblin Welder

  R

  Creature — Goblin ArtificerR

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• Dr. Madison Li

  URW

  Legendary Creature — Human ScientistRUW

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• Teleportation Circle

  3W

  EnchantmentW

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Displacer Kitten

  3U

  Creature — Cat BeastU

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Brago, King Eternal

  2WU

  Legendary Creature — Spirit NobleUW

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Scrap Welder

  2R

  Creature — Goblin ArtificerR

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• Gerrard, Weatherlight Hero

  2RW

  Legendary Creature — Human SoldierRW

  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.
• Geth, Lord of the Vault

  4BB

  Legendary Creature — Phyrexian ZombieB

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• Salvaging Station

  6

  ArtifactC

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• Shuri's Fabricator

  4

  ArtifactC

  Recursion engine: one card can reanimate repeatedly (an activated ability), and the other is a creature worth bringing back again and again. Real, repeatable value — not an infinite loop on its own.
• Professor Dellian Fel

  2BG

  Legendary Planeswalker — DellianBG

  Dissection Tools grants lifelink, converting Professor Dellian Fel's damage into life-gain triggers.
• Nazar, the Velvet Fang

  3B

  Legendary Creature — Vampire WarlockB

  Dissection Tools grants lifelink, converting Nazar, the Velvet Fang's damage into life-gain triggers.
• Karlov of the Ghost Council

  WB

  Legendary Creature — Spirit AdvisorBW

  Dissection Tools grants lifelink, converting Karlov of the Ghost Council's damage into life-gain triggers.
• Amalia Benavides Aguirre

  WB

  Legendary Creature — Vampire ScoutBW

  Dissection Tools grants lifelink, converting Amalia Benavides Aguirre's damage into life-gain triggers.
• Trudge Garden

  2G

  EnchantmentG

  Dissection Tools grants lifelink, converting Trudge Garden's damage into life-gain triggers.
• Phelia, Exuberant Shepherd

  1W

  Legendary Creature — DogW

  Phelia, Exuberant Shepherd blinks (exiles and returns) a permanent, re-firing Dissection Tools's enter-the-battlefield effect.
• Elrond, Moon-Reader

  2U

  Legendary Creature — Elf NobleU

  Elrond, Moon-Reader blinks (exiles and returns) a permanent, re-firing Dissection Tools's enter-the-battlefield effect.
• Comforting Counsel

  1G

  EnchantmentG

  Dissection Tools grants lifelink, converting Comforting Counsel's damage into life-gain triggers.
• Prize Pig

  1G

  Creature — BoarG

  Dissection Tools grants lifelink, converting Prize Pig's damage into life-gain triggers.
• Starscape Cleric

  1B

  Creature — Bat ClericB

  Dissection Tools grants lifelink, converting Starscape Cleric's damage into life-gain triggers.
• Qala, Ajani's Pridemate

  3W

  Legendary Creature — Cat WarriorW

  Dissection Tools grants lifelink, converting Qala, Ajani's Pridemate's damage into life-gain triggers.
• Nahiri's Resolve

  3RW

  EnchantmentRW

  Nahiri's Resolve blinks (exiles and returns) a permanent, re-firing Dissection Tools's enter-the-battlefield effect.