Confidence:StrongSolidPlausibleTentativeSpeculative

• Grand Architect✓

  1UU

  Creature — Vedalken ArtificerU

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

  1U

  Creature — Human WizardU

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

  2GW

  EnchantmentGW

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

  2UU

  EnchantmentU

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

  3W

  Creature — SpiritW

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

  3W

  EnchantmentW

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Urza, Lord High Artificer✓

  2UU

  Legendary Creature — Human ArtificerU

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

  2BG

  Legendary Creature — Squirrel DruidBG

  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.
• Karn, Living Legacy

  4

  Legendary Planeswalker — KarnC

  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.
• Prosperous Partnership

  1RW

  EnchantmentRW

  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.
• Giant Killer // Chop Down

  W2W

  Creature — Human Peasant // Instant — AdventureW

  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.
• Instrument of the Bards

  G

  Legendary ArtifactG

  Mana loop: net-positive mana cycle between the two cards.
• Stormscape Apprentice

  U

  Creature — Human WizardBUW

  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.
• Reckless Lackey

  R

  Creature — Goblin PirateR

  Mana loop: net-positive mana cycle between the two cards.
• Mr. House, President and CEO

  RWB

  Legendary Artifact Creature — HumanBRW

  Mana loop: net-positive mana cycle between the two cards.
• Gideon's Lawkeeper

  W

  Creature — Human SoldierW

  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.
• Goldmeadow Harrier

  W

  Creature — Kithkin SoldierW

  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.
• Currency Converter

  1

  ArtifactC

  Mana loop: net-positive mana cycle between the two cards.
• Elite Arrester

  W

  Creature — Human SoldierUW

  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.
• Fan Bearer

  W

  Creature — ZombieW

  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.
• Azorius Guildmage

  W/UW/U

  Creature — Vedalken WizardUW

  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.
• Gavony Trapper

  W

  Creature — Human SoldierW

  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.
• Mothrider Patrol

  W

  Creature — Fox WarriorW

  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.
• Thassa, Deep-Dwelling

  3U

  Legendary Enchantment Creature — GodU

  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.
• Marshal of Zhalfir

  WU

  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.