Confidence:StrongSolidPlausibleTentativeSpeculative

• Lady Sun

  1UU

  Legendary Creature — Human AdvisorU

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

  2UU

  Creature — Human WizardU

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

  2U

  Creature — Human WizardU

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

  3

  Artifact — EquipmentC

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

  10UU

  Snow Creature — KrakenU

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

  3UUU

  Legendary Creature — 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.
• Toralf, God of Fury // Toralf's Hammer

  2RR1R

  Legendary Creature — God // Legendary Artifact — EquipmentR

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Drafna, Founder of Lat-Nam

  1U

  Legendary Creature — Human Artificer AdvisorU

  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.
• Trusty Boomerang

  1

  Artifact — EquipmentC

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Bramble Familiar // Fetch Quest

  1G5GG

  Creature — Elemental Raccoon // Sorcery — AdventureG

  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.
• Song of the Worldsoul

  4WW

  EnchantmentW

  Both cards trigger when you cast a spell — they fire together.
• Mtenda Griffin

  3W

  Creature — GriffinW

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

  8CC

  Creature — EldraziC

  Both cards trigger when you cast a spell — they fire together.
• Hypervolt Grasp

  2R

  Enchantment — AuraRU

  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.
• Snow Hound

  2W

  Creature — DogW

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

  3UU

  EnchantmentU

  Both cards trigger when you cast a spell — they fire together.
• Suncrusher

  9

  Artifact Creature — ConstructC

  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.
• Black Lotus

  0

  ArtifactC

  Black Lotus is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Mana Crypt

  0

  ArtifactC

  Mana Crypt is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Mox Emerald

  0

  ArtifactG

  Mox Emerald is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Mox Jet

  0

  ArtifactB

  Mox Jet is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Mox Pearl

  0

  ArtifactW

  Mox Pearl is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Mox Ruby

  0

  ArtifactR

  Mox Ruby is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Mox Sapphire

  0

  ArtifactU

  Mox Sapphire is a free spell, so Mirran Spy's cast trigger fires for nothing.
• Ugin, Eye of the Storms

  7

  Legendary Planeswalker — UginC

  Both cards trigger when you cast a spell — they fire together.