Confidence:StrongSolidPlausibleTentativeSpeculative

• Mr. House, President and CEO

  RWB

  Legendary Artifact Creature — HumanBRW

  Mana loop: net-positive mana cycle between the two cards.
• Reanimate

  B

  SorceryB

  Reanimate puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Helping Hand

  W

  SorceryW

  Helping Hand puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unearth

  B

  SorceryB

  Unearth puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Currency Converter

  1

  ArtifactC

  Mana loop: net-positive mana cycle between the two cards.
• Wizard's Rockets

  1

  ArtifactC

  Mana loop: net-positive mana cycle between the two cards.
• Can't Stay Away

  WB

  SorceryBW

  Can't Stay Away puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Reckless Lackey

  R

  Creature — Goblin PirateR

  Mana loop: net-positive mana cycle between the two cards.
• Priest of Fell Rites

  WB

  Creature — Human WarlockBW

  Priest of Fell Rites puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Resistance Is Futile

  1B

  SorceryB

  Resistance Is Futile puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Petalmane Baku

  1G

  Creature — SpiritG

  Mana loop: net-positive mana cycle between the two cards.
• Animate Dead

  1B

  Enchantment — AuraB

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

  1B

  SorceryB

  Exhume puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Return Triumphant

  1W

  SorceryW

  Return Triumphant puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Life // Death

  G1B

  Sorcery // SorceryBG

  Life puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Dance of the Dead

  1B

  Enchantment — AuraB

  Dance of the Dead puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Elemental Masterpiece

  5UR

  SorceryRU

  Mana loop: net-positive mana cycle between the two cards.
• Recommission

  1W

  SorceryW

  Recommission puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Call a Surprise Witness

  1W

  SorceryW

  Call a Surprise Witness puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Persist

  1B

  SorceryB

  Persist puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Fain, the Broker

  2B

  Legendary Creature — Human WarlockB

  Mana loop: net-positive mana cycle between the two cards.
• Soul Exchange

  BB

  SorceryB

  Soul Exchange puts Grinning Ignus onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Nykthos, Shrine to Nyx

  Legendary LandC

  Mana loop: net-positive mana cycle between the two cards.
• Tavern Scoundrel

  1R

  Creature — Human RogueR

  Mana loop: net-positive mana cycle between the two cards.