Confidence:StrongSolidPlausibleTentativeSpeculative

• Arcanis the Omnipotent

  3UUU

  Legendary Creature — WizardU

  Arcanis the Omnipotent bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Endless Evil

  2U

  Enchantment — AuraU

  Endless Evil bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Mistbreath Elder

  G

  Creature — Frog WarriorG

  Mistbreath Elder bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Liliana, Death's Majesty

  3BB

  Legendary Planeswalker — LilianaB

  Liliana, Death's Majesty puts Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Kaya the Inexorable

  3WB

  Legendary Planeswalker — KayaBW

  Kaya the Inexorable bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Cartographer's Hawk

  1W

  Creature — BirdW

  Cartographer's Hawk bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Bob, Reluctant HYDRA Agent

  1B

  Legendary Creature — Human Coward VillainB

  Bob, Reluctant HYDRA Agent bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Yore-Tiller Nephilim

  WUBR

  Creature — NephilimBRUW

  Yore-Tiller Nephilim puts Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Recross the Paths

  2G

  SorceryG

  Recross the Paths bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Reinforced Ronin

  R

  Artifact Creature — Human SamuraiR

  Reinforced Ronin bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Fleeting Effigy

  R

  Creature — ElementalR

  Fleeting Effigy bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Sefris of the Hidden Ways

  WUB

  Legendary Creature — Human WizardBUW

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

  2B

  EnchantmentB

  Recurring Nightmare puts Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unfinished Business

  3WW

  SorceryW

  Unfinished Business puts Orbweaver Kumo 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 Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• The Cruelty of Gix

  3BB

  Enchantment — SagaB

  The Cruelty of Gix puts Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Alrund, God of the Cosmos // Hakka, Whispering Raven

  3UU1U

  Legendary Creature — God // Legendary Creature — BirdU

  Alrund, God of the Cosmos bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Liliana, Waker of the Dead

  2BB

  Legendary Planeswalker — LilianaB

  Liliana, Waker of the Dead puts Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Glitterfang

  R

  Creature — SpiritR

  Glitterfang bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Lady Sun

  1UU

  Legendary Creature — Human AdvisorU

  Lady Sun bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Toralf, God of Fury // Toralf's Hammer

  2RR1R

  Legendary Creature — God // Legendary Artifact — EquipmentR

  Toralf, God of Fury bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Mardu Shadowspear

  B

  Creature — Human WarriorB

  Mardu Shadowspear bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Thopter Assembly

  6

  Artifact Creature — ThopterC

  Thopter Assembly bounces a permanent, enabling Orbweaver Kumo's recast / spell-cast trigger.
• Animate Dead

  1B

  Enchantment — AuraB

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

  1B

  SorceryB

  Exhume puts Orbweaver Kumo onto the battlefield from a graveyard without casting it, so its mana cost is never paid.