Confidence:StrongSolidPlausibleTentativeSpeculative

• Reanimate

  B

  SorceryB

  Reanimate puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Fiery Gambit

  2R

  SorceryR

  Fiery Gambit untaps lands, fueling Gnottvold Hermit's mana-hungry effect.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Innocuous Researcher

  3G

  Creature — Centaur DetectiveG

  Innocuous Researcher untaps lands, fueling Gnottvold Hermit's mana-hungry effect.
• Time Spiral

  4UU

  SorceryU

  Time Spiral untaps lands, fueling Gnottvold Hermit's mana-hungry effect.
• Sefris of the Hidden Ways

  WUB

  Legendary Creature — Human WizardBUW

  Sefris of the Hidden Ways puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Recurring Nightmare

  2B

  EnchantmentB

  Recurring Nightmare puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Priest of Fell Rites

  WB

  Creature — Human WarlockBW

  Priest of Fell Rites puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Nissa, Vastwood Seer // Nissa, Sage Animist

  2G

  Legendary Creature — Elf Scout // Legendary Planeswalker — NissaG

  Nissa, Vastwood Seer untaps lands, fueling Gnottvold Hermit's mana-hungry effect.
• Animate Dead

  1B

  Enchantment — AuraB

  Animate Dead puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Exhume

  1B

  SorceryB

  Exhume puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Life // Death

  G1B

  Sorcery // SorceryBG

  Life puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Elrond, Moon-Reader

  2U

  Legendary Creature — Elf NobleU

  Gnottvold Hermit has activated abilities that aren't mana abilities, fueling Elrond, Moon-Reader's activation-trigger.
• Godo, Bandit Warlord

  5R

  Legendary Creature — Human BarbarianR

  Godo, Bandit Warlord grants an extra combat phase, enabling Gnottvold Hermit's combat-trigger payoff.
• Dance of the Dead

  1B

  Enchantment — AuraB

  Dance of the Dead puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• All-Out Assault

  2RWB

  EnchantmentBRW

  All-Out Assault grants an extra combat phase, enabling Gnottvold Hermit's combat-trigger payoff.
• Victimize

  2B

  SorceryB

  Victimize puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Persist

  1B

  SorceryB

  Persist puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Soul Exchange

  BB

  SorceryB

  Soul Exchange puts Gnottvold Hermit onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Zariel, Archduke of Avernus

  2RR

  Legendary Planeswalker — ZarielR

  Zariel, Archduke of Avernus grants an extra combat phase, enabling Gnottvold Hermit's combat-trigger payoff.
• Balthier and Fran

  1RG

  Legendary Creature — Human RabbitGR

  Balthier and Fran grants an extra combat phase, enabling Gnottvold Hermit's combat-trigger payoff.
• Rewind

  2UU

  InstantU

  Rewind untaps lands, fueling Gnottvold Hermit's mana-hungry effect.
• Bruce Banner // The Incredible Hulk

  U2RRGG

  Legendary Creature — Human Scientist Hero // Legendary Creature — Gamma Berserker HeroGRU

  Bruce Banner grants an extra combat phase, enabling Gnottvold Hermit's combat-trigger payoff.
• Ral Zarek

  2UR

  Legendary Planeswalker — RalRU

  Ral Zarek grants an extra turn, enabling Gnottvold Hermit's per-turn payoff.
• Finale of Revelation

  XUU

  SorceryU

  Finale of Revelation untaps lands, fueling Gnottvold Hermit's mana-hungry effect.