Confidence:StrongSolidPlausibleTentativeSpeculative

• Julian Bashir, Frontier Doctor

  2W

  Legendary Creature — Human DoctorW

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.
• Knuckles the Echidna

  2RR

  Legendary Creature — Echidna WarriorR

  Both cards trigger on damage dealt — they fire together.
• Sphere Grid

  1G

  EnchantmentG

  Both cards trigger on damage dealt — they fire together.
• Archivist of Gondor

  2U

  Creature — Human AdvisorU

  Both cards trigger on damage dealt — they fire together.
• Goro-Goro and Satoru

  UBR

  Legendary Creature — Goblin HumanBRU

  Both cards trigger on damage dealt — they fire together.
• Rinoa, Angel Wing

  2W

  Legendary Creature — Human Rebel WarlockW

  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.
• Oona's Blackguard

  1B

  Creature — Faerie RogueB

  Both cards trigger on damage dealt — they fire together.
• Illicit Masquerade

  3B

  EnchantmentB

  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.
• Avatar Kyoshi, Earthbender

  5GGG

  Legendary Creature — Human AvatarG

  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.
• Tidus, Yuna's Guardian

  GWU

  Legendary Creature — Human WarriorGUW

  Both cards trigger on damage dealt — they fire together.
• Kodama of the West Tree

  2G

  Legendary Creature — SpiritG

  Both cards trigger on damage dealt — they fire together.
• The Beast, Deathless Prince

  2BR

  Legendary Creature — DemonBR

  Both cards trigger on damage dealt — they fire together.
• Mistway Spy

  U

  Creature — Merfolk DetectiveU

  Both cards trigger on damage dealt — they fire together.
• Vraska the Unseen

  3BG

  Legendary Planeswalker — VraskaBG

  Both cards trigger on damage dealt — they fire together.
• 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 Rani

  1UBR

  Legendary Creature — Time Lord ScientistBRU

  Both cards trigger on damage dealt — they fire together.
• Stick, Fearless Mentor

  1R

  Legendary Creature — Human Monk HeroR

  Both cards trigger on damage dealt — they fire together.
• 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.
• Kaito, Dancing Shadow

  2UB

  Legendary Planeswalker — KaitoBU

  Both cards trigger on damage dealt — they fire together.
• Love on the Battlefield

  1UR

  EnchantmentRU

  Both cards trigger on damage dealt — they fire together.
• 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.).
• Grenzo, Havoc Raiser

  RR

  Legendary Creature — Goblin RogueR

  Both cards trigger on damage dealt — they fire together.
• One with Nature

  G

  Enchantment — AuraG

  Both cards trigger on damage dealt — they fire together.
• 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.