Confidence:StrongSolidPlausibleTentativeSpeculative

• Esper Sojourners

  WUB

  Artifact Creature — Vedalken 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.
• Chevill, Bane of Monsters

  BG

  Legendary Creature — Human RogueBG

  Mouth of Ronom produces damage that can kill creatures, enabling Chevill, Bane of Monsters's death-trigger or removal payoff.
• Minsc & Boo, Timeless Heroes

  2RG

  Legendary Planeswalker — MinscGR

  Mouth of Ronom produces damage that can kill creatures, enabling Minsc & Boo, Timeless Heroes's death-trigger or removal payoff.
• Bloodline Recollector // Ancestral Craving

  1BB

  Creature — Vampire Warlock // InstantB

  Mouth of Ronom produces damage that can kill creatures, enabling Bloodline Recollector's death-trigger or removal payoff.
• Banon, the Returners' Leader

  RW

  Legendary Creature — Human Cleric RebelRW

  Mouth of Ronom produces damage that can kill creatures, enabling Banon, the Returners' Leader's death-trigger or removal payoff.
• The Meathook Massacre

  XBB

  Legendary EnchantmentB

  Mouth of Ronom produces damage that can kill creatures, enabling The Meathook Massacre's death-trigger or removal payoff.
• 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.
• Quest for the Gravelord

  B

  EnchantmentB

  Mouth of Ronom produces damage that can kill creatures, enabling Quest for the Gravelord's death-trigger or removal payoff.
• Gravecrawler

  B

  Creature — ZombieB

  Mouth of Ronom produces damage that can kill creatures, enabling Gravecrawler's death-trigger or removal payoff.
• Bequeathal

  G

  Enchantment — AuraG

  Mouth of Ronom produces damage that can kill creatures, enabling Bequeathal's death-trigger or removal payoff.
• Kraven the Hunter

  1BG

  Legendary Creature — Human Warrior VillainBG

  Mouth of Ronom produces damage that can kill creatures, enabling Kraven the Hunter's death-trigger or removal payoff.
• Undead Sprinter

  BR

  Creature — ZombieBR

  Mouth of Ronom produces damage that can kill creatures, enabling Undead Sprinter's death-trigger or removal payoff.
• Toshiro Umezawa

  1BB

  Legendary Creature — Human SamuraiB

  Mouth of Ronom produces damage that can kill creatures, enabling Toshiro Umezawa's death-trigger or removal payoff.
• Malicious Affliction

  BB

  InstantB

  Mouth of Ronom produces damage that can kill creatures, enabling Malicious Affliction's death-trigger or removal payoff.
• Timeline Culler

  BB

  Creature — Drix WarlockB

  Mouth of Ronom produces damage that can kill creatures, enabling Timeline Culler's death-trigger or removal payoff.
• Innocuous Researcher

  3G

  Creature — Centaur DetectiveG

  Innocuous Researcher untaps all (or many) permanents, refreshing Mouth of Ronom's tap activation.
• Fiery Gambit

  2R

  SorceryR

  Fiery Gambit untaps all (or many) permanents, refreshing Mouth of Ronom's tap activation.
• Enduring Renewal

  2WW

  EnchantmentW

  Mouth of Ronom produces damage that can kill creatures, enabling Enduring Renewal's death-trigger or removal payoff.
• Glissa, the Traitor

  BGG

  Legendary Creature — Phyrexian Zombie ElfBG

  Mouth of Ronom produces damage that can kill creatures, enabling Glissa, the Traitor's death-trigger or removal payoff.
• Liliana, Heretical Healer // Liliana, Defiant Necromancer

  1BB

  Legendary Creature — Human Cleric // Legendary Planeswalker — LilianaB

  Mouth of Ronom produces damage that can kill creatures, enabling Liliana, Heretical Healer's death-trigger or removal payoff.
• Skullclamp

  1

  Artifact — EquipmentC

  Mouth of Ronom produces damage that can kill creatures, enabling Skullclamp's death-trigger or removal payoff.
• Jorn, God of Winter // Kaldring, the Rimestaff

  2G1UB

  Legendary Snow Creature — God // Legendary Snow ArtifactBGU

  Jorn, God of Winter untaps all (or many) permanents, refreshing Mouth of Ronom's tap activation.
• Lagomos, Hand of Hatred

  1BR

  Legendary Creature — Human ShamanBR

  Mouth of Ronom produces damage that can kill creatures, enabling Lagomos, Hand of Hatred's death-trigger or removal payoff.
• Ob Nixilis, Unshackled

  4BB

  Legendary Creature — DemonB

  Mouth of Ronom produces damage that can kill creatures, enabling Ob Nixilis, Unshackled's death-trigger or removal payoff.
• Tevesh Szat, Doom of Fools

  4B

  Legendary Planeswalker — SzatB

  Mouth of Ronom produces damage that can kill creatures, enabling Tevesh Szat, Doom of Fools's death-trigger or removal payoff.