Confidence:StrongSolidPlausibleTentativeSpeculative

• Ioreth of the Healing House✓

  2U

  Legendary Creature — Human ClericU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Forensic Researcher

  2U

  Creature — Merfolk DetectiveU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Nature's Chosen

  G

  Enchantment — AuraG

  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.
• Stonybrook Angler

  1U

  Creature — Merfolk WizardU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Vizier of Tumbling Sands

  2U

  Creature — Human ClericU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Tideforce Elemental

  2U

  Creature — ElementalU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Ith, High Arcanist

  5WU

  Legendary Creature — Human WizardUW

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Niblis of the Breath

  2U

  Creature — SpiritU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Captain of the Mists

  2U

  Creature — Human WizardU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Puppeteer

  2U

  Creature — Human WizardU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Kelpie Guide

  2U

  Creature — BeastU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Fatestitcher

  3U

  Creature — Zombie WizardU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Sky Hussar

  3WU

  Creature — Human KnightUW

  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.
• Saheeli, the Sun's Brilliance

  UR

  Legendary Creature — Human ArtificerRU

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Aura of Dominion

  UU

  Enchantment — AuraU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Tidewater Minion

  3UU

  Creature — Elemental MinionU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Nimbleclaw Adept

  3U

  Creature — Dragon WizardU

  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.
• Trickster Mage

  U

  Creature — Human SpellshaperU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Splinter Twin

  2RR

  Enchantment — AuraR

  Copy chain: one card creates hasty copies of a creature whose ability or ETB the partner exploits — the canonical Kiki-Jiki / Splinter Twin pattern.
• Thornbite Staff

  2

  Kindred Artifact — Shaman EquipmentC

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Overtaker

  1U

  Creature — Merfolk SpellshaperU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Copperhorn Scout

  G

  Creature — Elf ScoutG

  Copperhorn Scout untaps all (or many) permanents, refreshing Norritt's tap activation.
• White Plume Adventurer

  2W

  Creature — Orc ClericW

  White Plume Adventurer untaps all (or many) permanents, refreshing Norritt's tap activation.
• Jace, Ingenious Mind-Mage

  4UU

  Legendary Planeswalker — JaceU

  Jace, Ingenious Mind-Mage untaps all (or many) permanents, refreshing Norritt's tap activation.
• Aggravated Assault

  2R

  EnchantmentR

  Aggravated Assault untaps all (or many) permanents, refreshing Norritt's tap activation.