Confidence:StrongSolidPlausibleTentativeSpeculative

• Mila, Crafty Companion // Lukka, Wayward Bonder

  1WW4RR

  Legendary Creature — Fox // Legendary Planeswalker — LukkaRW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Intruder Alarm

  2U

  EnchantmentU

  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.
• Goryo's Vengeance

  1B

  Instant — ArcaneB

  Both cards blink (exile-and-return) creatures — their effects stack.
• Shallow Grave

  1B

  InstantB

  Both cards blink (exile-and-return) creatures — their effects stack.
• Whip of Erebos

  2BB

  Legendary Enchantment ArtifactB

  Both cards blink (exile-and-return) creatures — their effects stack.
• Dawn of the Dead

  2BBB

  EnchantmentB

  Both cards blink (exile-and-return) creatures — their effects stack.
• Legion's Initiative

  RW

  EnchantmentRW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Wake to Slaughter

  3BR

  SorceryBR

  Both cards blink (exile-and-return) creatures — their effects stack.
• Planar Guide

  W

  Creature — Human ClericW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Gilraen, Dúnedain Protector

  2W

  Legendary Creature — Human NobleW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Postmortem Lunge

  XB/P

  SorceryB

  Both cards blink (exile-and-return) creatures — their effects stack.
• Identity Thief

  2UU

  Creature — ShapeshifterU

  Both cards blink (exile-and-return) creatures — their effects stack.
• Phoenix Down

  W

  ArtifactW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Angel of Glory's Rise

  5WW

  Creature — AngelW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Vanish into Memory

  2WU

  InstantUW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Colossal Whale

  5UU

  Creature — WhaleU

  Both cards blink (exile-and-return) creatures — their effects stack.
• Parting Gust

  WW

  InstantW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Kheru Lich Lord

  3BGU

  Creature — Zombie WizardBGU

  Both cards blink (exile-and-return) creatures — their effects stack.
• Lae'zel's Acrobatics

  3W

  InstantW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Koya, Death from Above

  2W

  Legendary Creature — Mutant Ninja BirdBW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Settle Beyond Reality

  4W

  SorceryW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Mysterious Limousine

  3WW

  Artifact — VehicleW

  Both cards blink (exile-and-return) creatures — their effects stack.
• Aligned Hedron Network

  4

  ArtifactC

  Both cards blink (exile-and-return) creatures — their effects stack.
• 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.
• The Eternal Wanderer

  4WW

  Legendary PlaneswalkerW

  Both cards blink (exile-and-return) creatures — their effects stack.