Confidence:StrongSolidPlausibleTentativeSpeculative

• Zul Ashur, Lich Lord

  1B

  Legendary Creature — Zombie WarlockB

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Voltaic Visionary // Volt-Charged Berserker

  1R

  Creature — Human Wizard // Creature — Human BerserkerR

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

  2R

  Artifact Creature — Synth SoldierR

  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.
• Osteomancer Adept

  1B

  Creature — Squirrel WarlockB

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Jessica Jones, Private Eye

  2R

  Legendary Creature — Human Detective HeroR

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Emry, Lurker of the Loch

  2U

  Legendary Creature — Merfolk WizardU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Stella Lee, Wild Card

  1UR

  Legendary Creature — Human RogueRU

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

  2GU

  Legendary Creature — Human ShamanGU

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

  1GG

  Legendary Creature — Elf WarriorG

  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.
• Yasmin Khan

  3R

  Legendary Creature — Human DetectiveR

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

  1UU

  Legendary Creature — Human AdvisorU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Niambi, Esteemed Speaker

  WU

  Legendary Creature — Human ClericUW

  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.
• Breya's Apprentice

  2R

  Artifact Creature — Human ArtificerR

  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.
• Shieldmage Advocate

  2W

  Creature — Human ClericW

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Kirol, Attentive First-Year

  1R/WR/W

  Legendary Creature — Vampire ClericRW

  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.
• Tradewind Rider

  3U

  Creature — SpiritU

  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.
• Ellie and Alan, Paleontologists

  2GWU

  Legendary Creature — Human ScientistGUW

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

  2RW

  Legendary Creature — Human SoldierRW

  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.
• Lobelia, Defender of Bag End

  2B

  Legendary Creature — Halfling CitizenB

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

  2R

  Creature — Goblin ArtificerR

  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.
• Keeper of the Nine Gales

  2U

  Creature — Bird WizardU

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Lady Octopus, Inspired Inventor

  U

  Legendary Creature — Human Scientist VillainU

  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.

• WithLobelia, Defender of Bag End2BB

  Untap loop: each card untaps the other, generating arbitrary activations or mana. These two can't keep the loop going alone — add one of these to complete it:

  Elmar, Ulvenwald Informant1RGKingpin, Wilson Fisk3BStorm-Kiln Artist3RMalcolm, the EyesURNuka-Cola Vending Machine3Forensic Gadgeteer2U
  Show cards
• WithBreya's Apprentice2RR

  Untap loop: each card untaps the other, generating arbitrary activations or mana. These two can't keep the loop going alone — add one of these to complete it:

  Elmar, Ulvenwald Informant1RGStorm-Kiln Artist3RMalcolm, the EyesURForensic Gadgeteer2UNuka-Cola Vending Machine3Kingpin, Wilson Fisk3B
  Show cards
• WithHedron Detonator2RR

  Untap loop: each card untaps the other, generating arbitrary activations or mana. These two can't keep the loop going alone — add one of these to complete it:

  Kingpin, Wilson Fisk3B
  Show cards