Confidence:StrongSolidPlausibleTentativeSpeculative

• Reanimate

  B

  SorceryB

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

  W

  SorceryW

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

  B

  SorceryB

  Unearth puts Ursine Monstrosity 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 Ursine Monstrosity onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Can't Stay Away

  WB

  SorceryBW

  Can't Stay Away puts Ursine Monstrosity 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 Ursine Monstrosity 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 Ursine Monstrosity onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Animate Dead

  1B

  Enchantment — AuraB

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

  1B

  SorceryB

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

  1W

  SorceryW

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

  G1B

  Sorcery // SorceryBG

  Life puts Ursine Monstrosity 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 Ursine Monstrosity onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Recommission

  1W

  SorceryW

  Recommission puts Ursine Monstrosity 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 Ursine Monstrosity onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Persist

  1B

  SorceryB

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

  BB

  SorceryB

  Soul Exchange puts Ursine Monstrosity onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Roaming Throne

  4

  Artifact Creature — GolemC

  Roaming Throne makes Ursine Monstrosity's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Mirror Room // Fractured Realm

  2U5UU

  Enchantment — Room // Enchantment — RoomU

  Mirror Room makes Ursine Monstrosity's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Rat King, Verminister

  1B

  Legendary Creature — Rat AvatarB

  Rat King, Verminister puts Ursine Monstrosity onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Wizard's Staff

  1U

  Artifact — EquipmentU

  Wizard's Staff makes Ursine Monstrosity's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Quest for Ancient Secrets

  U

  EnchantmentU

  Ursine Monstrosity mills (or dredges) cards into your graveyard, and Quest for Ancient Secrets pays off whenever a card — or a card of the type it names — is put into a graveyard from anywhere; the more it mills, the likelier it hits.
• Sefris of the Hidden Ways

  WUB

  Legendary Creature — Human WizardBUW

  Ursine Monstrosity mills (or dredges) cards into your graveyard, and Sefris of the Hidden Ways pays off whenever a card — or a card of the type it names — is put into a graveyard from anywhere; the more it mills, the likelier it hits.
• Dennick, Pious Apprentice // Dennick, Pious Apparition

  WU

  Legendary Creature — Human Soldier // Legendary Creature — Spirit SoldierUW

  Ursine Monstrosity mills (or dredges) cards into your graveyard, and Dennick, Pious Apprentice pays off whenever a card — or a card of the type it names — is put into a graveyard from anywhere; the more it mills, the likelier it hits.
• Sand Scout

  1W

  Creature — Human ScoutW

  Ursine Monstrosity mills (or dredges) cards into your graveyard, and Sand Scout pays off whenever a card — or a card of the type it names — is put into a graveyard from anywhere; the more it mills, the likelier it hits.
• Titania, Voice of Gaea

  1GG

  Legendary Creature — ElementalG

  Ursine Monstrosity mills (or dredges) cards into your graveyard, and Titania, Voice of Gaea pays off whenever a card — or a card of the type it names — is put into a graveyard from anywhere; the more it mills, the likelier it hits.