Confidence:StrongSolidPlausibleTentativeSpeculative

• Reanimate

  B

  SorceryB

  Reanimate puts Magus of the Jar onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Nath of the Gilt-Leaf

  3BG

  Legendary Creature — Elf WarriorBG

  Magus of the Jar makes opponents discard, fueling Nath of the Gilt-Leaf's discard payoff.
• Aclazotz, Deepest Betrayal // Temple of the Dead

  3BB

  Legendary Creature — Bat God // LandB

  Magus of the Jar makes opponents discard, fueling Aclazotz, Deepest Betrayal's discard payoff.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

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

  1

  ArtifactC

  Magus of the Jar makes opponents discard, fueling Currency Converter's discard payoff.
• Necropotence

  BBB

  EnchantmentB

  Magus of the Jar makes opponents discard, fueling Necropotence's discard payoff.
• Priest of Fell Rites

  WB

  Creature — Human WarlockBW

  Priest of Fell Rites puts Magus of the Jar onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Waste Not

  1B

  EnchantmentB

  Magus of the Jar makes opponents discard, fueling Waste Not's discard payoff.
• Midnight Oil

  2BB

  EnchantmentB

  Magus of the Jar makes opponents discard, fueling Midnight Oil's discard payoff.
• Lazotep Chancellor

  UB

  Creature — Zombie WizardBU

  Magus of the Jar makes opponents discard, fueling Lazotep Chancellor's discard payoff.
• Animate Dead

  1B

  Enchantment — AuraB

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

  1B

  SorceryB

  Exhume puts Magus of the Jar onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Harmonic Prodigy

  1R

  Creature — Human WizardR

  Harmonic Prodigy makes Magus of the Jar's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Tinybones, Bauble Burglar

  1B

  Legendary Creature — Skeleton RogueB

  Magus of the Jar makes opponents discard, fueling Tinybones, Bauble Burglar's discard payoff.
• Life // Death

  G1B

  Sorcery // SorceryBG

  Life puts Magus of the Jar 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 Magus of the Jar onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Persist

  1B

  SorceryB

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

  BB

  SorceryB

  Soul Exchange puts Magus of the Jar onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Green Goblin, Back for More

  3BB

  Legendary Creature — Goblin Human VillainB

  Magus of the Jar makes opponents discard, fueling Green Goblin, Back for More's discard payoff.
• Ivora, Insatiable Heir

  1R

  Legendary Creature — Vampire WarriorR

  Magus of the Jar makes opponents discard, fueling Ivora, Insatiable Heir's discard payoff.
• Ragged Recluse // Odious Witch

  1B

  Creature — Human Peasant // Creature — Human WarlockB

  Magus of the Jar makes opponents discard, fueling Ragged Recluse's discard payoff.
• Roaming Throne

  4

  Artifact Creature — GolemC

  Roaming Throne makes Magus of the Jar's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Fell Specter

  3B

  Creature — SpecterB

  Magus of the Jar makes opponents discard, fueling Fell Specter's discard payoff.
• Electro's Bolt

  2R

  SorceryR

  Magus of the Jar makes opponents discard, fueling Electro's Bolt's discard payoff.
• Flameblade Adept

  R

  Creature — Jackal WarriorR

  Magus of the Jar makes opponents discard, fueling Flameblade Adept's discard payoff.