Confidence:StrongSolidPlausibleTentativeSpeculative

• 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.
• Intellectual Offering

  4U

  InstantU

  Intellectual Offering untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• Unstoppable Plan

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• 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.
• Seedborn Muse

  3GG

  Creature — SpiritG

  Seedborn Muse untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• 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.
• Unwinding Clock

  4

  ArtifactC

  Unwinding Clock untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• Paradox Engine

  5

  Legendary ArtifactC

  Paradox Engine untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• Dramatic Reversal

  1U

  InstantU

  Dramatic Reversal untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• Blinkmoth Infusion

  12UU

  InstantU

  Blinkmoth Infusion untaps all (or many) permanents, refreshing Contagion Clasp's tap activation.
• Brought Back

  WW

  InstantW

  Brought Back returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Mikey & Leo, Chaos & Order

  G/WG/W

  Legendary Creature — Mutant Ninja TurtleGW

  Contagion Clasp proliferates, growing the counters Mikey & Leo, Chaos & Order relies on.
• Jolted Awake

  W

  SorceryW

  Jolted Awake returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Tameshi, Reality Architect

  2U

  Legendary Creature — Moonfolk WizardUW

  Tameshi, Reality Architect returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Phelia, Exuberant Shepherd

  1W

  Legendary Creature — DogW

  Phelia, Exuberant Shepherd blinks (exiles and returns) a permanent, re-firing Contagion Clasp's enter-the-battlefield effect.
• Goblin Engineer

  1R

  Creature — Goblin ArtificerR

  Goblin Engineer returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Elrond, Moon-Reader

  2U

  Legendary Creature — Elf NobleU

  Elrond, Moon-Reader blinks (exiles and returns) a permanent, re-firing Contagion Clasp's enter-the-battlefield effect.
• Hollowmurk Siege

  BG

  EnchantmentBG

  Contagion Clasp proliferates, growing the counters Hollowmurk Siege relies on.
• Goblin Welder

  R

  Creature — Goblin ArtificerR

  Goblin Welder returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• What Must Be Done

  3WW

  SorceryW

  What Must Be Done returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Nahiri's Resolve

  3RW

  EnchantmentRW

  Nahiri's Resolve blinks (exiles and returns) a permanent, re-firing Contagion Clasp's enter-the-battlefield effect.
• Recommission

  1W

  SorceryW

  Recommission returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Squall, SeeD Mercenary

  2WB

  Legendary Creature — Human Knight MercenaryBW

  Squall, SeeD Mercenary returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.
• Lorehold Charm

  RW

  InstantRW

  Lorehold Charm returns creatures from the graveyard to the battlefield, re-firing Contagion Clasp's enter-the-battlefield effect.