Confidence:StrongSolidPlausibleTentativeSpeculative

• Clock of Omens

  4

  ArtifactC

  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.
• Pia Nalaar, Consul of Revival

  RW

  Legendary Creature — Human ArtificerRW

  Both cards produce the same kind of effect (shared token subtype).
• Retrofitter Foundry

  1

  ArtifactC

  Both cards produce the same kind of effect (shared token subtype).
• Intellectual Offering

  4U

  InstantU

  Intellectual Offering untaps all (or many) permanents, refreshing Whirlermaker's tap activation.
• Stridehangar Automaton

  3

  Artifact Creature — ConstructC

  Both cards produce the same kind of effect (shared token subtype).
• Unstoppable Plan

  2U

  EnchantmentU

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

  3GG

  Creature — SpiritG

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

  4

  ArtifactC

  Unwinding Clock untaps all (or many) permanents, refreshing Whirlermaker's tap activation.
• Intrude on the Mind

  3UU

  InstantU

  Both cards produce the same kind of effect (shared token subtype).
• Thopter Squadron

  5

  Artifact Creature — ThopterC

  Both cards produce the same kind of effect (shared token subtype).
• Paradox Engine

  5

  Legendary ArtifactC

  Paradox Engine untaps all (or many) permanents, refreshing Whirlermaker's tap activation.
• Harried Dronesmith

  3R

  Creature — Human ArtificerR

  Both cards produce the same kind of effect (shared token subtype).
• Dramatic Reversal

  1U

  InstantU

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

  12UU

  InstantU

  Blinkmoth Infusion untaps all (or many) permanents, refreshing Whirlermaker's tap activation.
• Tezzeret, Artifice Master

  3UU

  Legendary Planeswalker — TezzeretU

  Both cards produce the same kind of effect (shared token subtype).
• Saheeli, Filigree Master

  2UR

  Legendary Planeswalker — SaheeliRU

  Both cards produce the same kind of effect (shared token subtype).
• Thopter Assembly

  6

  Artifact Creature — ThopterC

  Both cards produce the same kind of effect (shared token subtype).
• Dovin, Grand Arbiter

  1WU

  Legendary Planeswalker — DovinUW

  Both cards produce the same kind of effect (shared token subtype).
• Breya's Apprentice

  2R

  Artifact Creature — Human ArtificerR

  Both cards produce the same kind of effect (shared token subtype).
• Sai, Master Thopterist

  2U

  Legendary Creature — Human ArtificerU

  Both cards produce the same kind of effect (shared token subtype).
• Loyal Apprentice

  1R

  Creature — Human ArtificerR

  Both cards produce the same kind of effect (shared token subtype).
• Breya, Etherium Shaper

  WUBR

  Legendary Artifact Creature — HumanBRUW

  Both cards produce the same kind of effect (shared token subtype).
• Thopter Mechanic

  1U

  Creature — Human ArtificerU

  Both cards produce the same kind of effect (shared token subtype).
• Thopter Shop

  3

  ArtifactW

  Both cards produce the same kind of effect (shared token subtype).
• Thopter Spy Network

  2UU

  EnchantmentU

  Both cards produce the same kind of effect (shared token subtype).