Confidence:StrongSolidPlausibleTentativeSpeculative

• Reanimate

  B

  SorceryB

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

  W

  SorceryW

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

  B

  SorceryB

  Unearth puts Mother Bear 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 Mother Bear onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Grizzly Fate

  3GG

  SorceryG

  Both cards produce the same kind of effect (shared token subtype).
• Dancing from Dark to Dawn

  3GG

  EnchantmentG

  Both cards produce the same kind of effect (shared token subtype).
• Flaxen Intruder // Welcome Home

  G5GG

  Creature — Human Berserker // Sorcery — AdventureG

  Both cards produce the same kind of effect (shared token subtype).
• The Earth King

  3G

  Legendary Creature — Human Noble AllyG

  Both cards produce the same kind of effect (shared token subtype).
• Titania's Command

  4GG

  SorceryG

  Both cards produce the same kind of effect (shared token subtype).
• Caller of the Claw

  2G

  Creature — ElfG

  Both cards produce the same kind of effect (shared token subtype).
• Argoth, Sanctum of Nature

  LandG

  Both cards produce the same kind of effect (shared token subtype).
• Bear's Companion

  2GUR

  Creature — Human WarriorGRU

  Both cards produce the same kind of effect (shared token subtype).
• Words of Wilding

  2G

  EnchantmentG

  Both cards produce the same kind of effect (shared token subtype).
• Path to the World Tree

  1G

  EnchantmentBGRUW

  Both cards produce the same kind of effect (shared token subtype).
• Fade from History

  2GG

  SorceryG

  Both cards produce the same kind of effect (shared token subtype).
• Bearscape

  1GG

  EnchantmentG

  Both cards produce the same kind of effect (shared token subtype).
• Ayula's Influence

  GGG

  EnchantmentG

  Both cards produce the same kind of effect (shared token subtype).
• Kamahl's Summons

  3G

  SorceryG

  Both cards produce the same kind of effect (shared token subtype).
• Fiery Gambit

  2R

  SorceryR

  Fiery Gambit untaps lands, fueling Mother Bear's mana-hungry effect.
• Innocuous Researcher

  3G

  Creature — Centaur DetectiveG

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

  4UU

  SorceryU

  Time Spiral untaps lands, fueling Mother Bear's mana-hungry effect.
• Neerdiv, Devious Diver

  2U

  Legendary Creature — Merfolk RogueU

  Mother Bear has activated abilities that aren't mana abilities, fueling Neerdiv, Devious Diver's activation-trigger.
• Nissa, Vastwood Seer // Nissa, Sage Animist

  2G

  Legendary Creature — Elf Scout // Legendary Planeswalker — NissaG

  Nissa, Vastwood Seer untaps lands, fueling Mother Bear's mana-hungry effect.
• Elrond, Moon-Reader

  2U

  Legendary Creature — Elf NobleU

  Mother Bear has activated abilities that aren't mana abilities, fueling Elrond, Moon-Reader's activation-trigger.
• Rewind

  2UU

  InstantU

  Rewind untaps lands, fueling Mother Bear's mana-hungry effect.