Confidence:StrongSolidPlausibleTentativeSpeculative

• Magus of the Candelabra

  G

  Creature — Human WizardG

  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.
• Innocuous Researcher

  3G

  Creature — Centaur DetectiveG

  Innocuous Researcher untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Candelabra of Tawnos

  1

  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.
• Saryth, the Viper's Fang

  2GG

  Legendary Creature — Human WarlockG

  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.
• Prophet of Kruphix

  3GU

  Creature — Human WizardGU

  Prophet of Kruphix untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Bumi, Unleashed

  3RG

  Legendary Creature — Human Noble AllyGR

  Bumi, Unleashed untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Captain of the Mists

  2U

  Creature — Human 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.
• Seedborn Muse

  3GG

  Creature — SpiritG

  Seedborn Muse untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Wilderness Reclamation

  3G

  EnchantmentG

  Wilderness Reclamation untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Sword of Feast and Famine

  3

  Artifact — EquipmentC

  Sword of Feast and Famine untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Beledros Witherbloom

  5BG

  Legendary Creature — Elder DragonBG

  Beledros Witherbloom untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Hope Tender

  1G

  Creature — Human 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.
• Nature's Will

  2GG

  EnchantmentG

  Nature's Will untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Oboro Breezecaller

  1U

  Creature — Moonfolk 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.
• Elder Druid

  3G

  Creature — Elf Cleric 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.
• Silvanus's Invoker

  2G

  Creature — Dragon 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.
• Awakening

  2GG

  EnchantmentG

  Awakening untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Wakeroot Elemental

  4GG

  Creature — ElementalG

  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.
• Bear Umbra

  2GG

  Enchantment — AuraG

  Bear Umbra untaps all (or many) permanents, refreshing Festering Gulch's tap activation.
• Deserted Temple

  LandC

  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.
• Fall of the Thran

  5W

  Enchantment — SagaW

  Fall of the Thran returns creatures from the graveyard to the battlefield, re-firing Festering Gulch's enter-the-battlefield effect.
• Bonny Pall, Clearcutter

  3GUU

  Legendary Creature — Giant ScoutGU

  Bonny Pall, Clearcutter returns creatures from the graveyard to the battlefield, re-firing Festering Gulch's enter-the-battlefield effect.
• Teval, the Balanced Scale

  1BGU

  Legendary Creature — Spirit DragonBGU

  Teval, the Balanced Scale returns creatures from the graveyard to the battlefield, re-firing Festering Gulch's enter-the-battlefield effect.
• Lord Windgrace

  2BRG

  Legendary Planeswalker — WindgraceBGR

  Lord Windgrace returns creatures from the graveyard to the battlefield, re-firing Festering Gulch's enter-the-battlefield effect.
• Blossoming Tortoise

  2GG

  Creature — TurtleG

  Blossoming Tortoise returns creatures from the graveyard to the battlefield, re-firing Festering Gulch's enter-the-battlefield effect.