Confidence:StrongSolidPlausibleTentativeSpeculative

• Enduring Tenacity

  2BB

  Enchantment Creature — Snake GlimmerB

  Damage + lifelink: lifelink converts damage on one side into life triggers the partner pays off — the canonical Heliod / Karlov family.
• Baron Helmut Zemo

  BBB

  Legendary Creature — Human Noble VillainB

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Lagrella, the Magpie

  GWU

  Legendary Creature — Human SoldierGUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Terra, Magical Adept // Esper Terra

  1RG

  Legendary Creature — Human Wizard Warrior // Legendary Enchantment Creature — Saga WizardBGRUW

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• April O'Neil, Live on the Scene

  1U

  Legendary Creature — Human DetectiveU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Elvish Archivist

  1G

  Creature — Elf ArtificerG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Brainstealer Dragon

  5BB

  Creature — Dragon HorrorB

  Both cards trigger when a creature enters the battlefield — they fire together.
• Prowl, Stoic Strategist // Prowl, Pursuit Vehicle

  3W

  Legendary Artifact Creature — Robot // Legendary Artifact — VehicleW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Marneus Calgar

  2WUB

  Legendary Creature — Astartes WarriorBUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Amulet of Vigor

  1

  ArtifactC

  Both cards trigger when a creature enters the battlefield — they fire together.
• Killian, Decisive Mentor

  1WB

  Legendary Creature — Human WarlockBW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Entity Tracker

  2U

  Creature — Human ScoutU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Tome of Legends

  2

  Artifact — BookC

  Both cards trigger when a creature enters the battlefield — they fire together.
• Masterwork of Ingenuity

  1

  Artifact — EquipmentC

  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.).
• Mister Fantastic, Reed Richards

  3U

  Legendary Creature — Human Scientist HeroU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Ghostly Dancers

  3WW

  Creature — SpiritW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Corruption of Towashi

  4U

  EnchantmentU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Scrabbling Skullcrab

  U

  Creature — Crab SkeletonU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Fear of Infinity

  1UB

  Enchantment Creature — NightmareBU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Cloakwood Swarmkeeper

  G

  Creature — Elf RangerG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Yoshimaru, Ever Faithful

  W

  Legendary Creature — DogW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Invasion of Theros // Ephara, Ever-Sheltering

  2W

  Battle — Siege // Legendary Enchantment Creature — GodUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Threats Around Every Corner

  3G

  EnchantmentG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Gremlin Tamer

  WU

  Creature — Human ScoutUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Setessan Champion

  2G

  Creature — Human WarriorG

  Both cards trigger when a creature enters the battlefield — they fire together.

• Completes Meanders Guide × Grimgrin, Corpse-Born

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Extricator of Sin // Extricator of Flesh × Thornbite Staff

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Geralf, Visionary Stitcher × Thornbite Staff

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Black Carriage × Meanders Guide

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Mikaeus, the Unhallowed × Vish Kal, Blood Arbiter

  Death replacement: a death-replacement effect on one card lets the other survive lethal events. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Mikaeus, the Unhallowed × Bartolomé del Presidio

  Death replacement: a death-replacement effect on one card lets the other survive lethal events. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Chained Brute × Meanders Guide

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Marjhan × Meanders Guide

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Chained Brute × Cryptic Gateway

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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• Completes Marjhan × Cryptic Gateway

  Untap loop: each card untaps the other, generating arbitrary activations or mana. The pair can't keep the loop going alone — this card supplies the missing piece.

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