Confidence:StrongSolidPlausibleTentativeSpeculative

• Gaea's Cradle✓

  Legendary LandG

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Growing Rites of Itlimoc // Itlimoc, Cradle of the Sun✓

  2G

  Legendary Enchantment // Legendary LandG

  Untap loop: each side can untap what the other taps — a genuine mutual refresh engine.
• Nykthos, Shrine to Nyx✓

  Legendary LandC

  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.
• Wrenn and Realmbreaker

  1GG

  Legendary Planeswalker — WrennG

  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.
• Lithoform Blight

  1B

  Enchantment — AuraB

  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.
• Alpine Moon

  R

  EnchantmentR

  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.
• Great Divide Guide

  1G

  Creature — Human Scout AllyG

  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.
• Abundant Growth

  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.
• Boseiju, Who Endures

  Legendary LandG

  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.
• Baylen, the Haymaker

  RGW

  Legendary Creature — Rabbit WarriorGRW

  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.
• Joiner Adept

  1G

  Creature — Elf DruidG

  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.
• Dune Chanter

  2G

  Creature — Plant DruidG

  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.
• Overlaid Terrain

  2GG

  EnchantmentG

  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.
• Tectonic Split

  4GG

  EnchantmentG

  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.
• Jaheira, Friend of the Forest

  2G

  Legendary Creature — Human Elf DruidG

  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.
• Toxicrene

  3G

  Creature — TyranidG

  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.
• Gene Pollinator

  G

  Artifact Creature — Robot InsectG

  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.
• Volatile Fault

  Land — CaveC

  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.
• Bigger on the Inside

  3RG

  Enchantment — AuraGR

  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.
• Urban Utopia

  1G

  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.
• Balamb Garden, SeeD Academy // Balamb Garden, Airborne

  Land — Town // Legendary Artifact — VehicleGU

  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.
• Unbridled Growth

  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.
• Welcome to . . . // Jurassic Park

  1GG

  Enchantment — Saga // Legendary LandG

  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.
• Chromatic Lantern

  3

  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.