Confidence:StrongSolidPlausibleTentativeSpeculative

• Emperor Mihail II

  1UU

  Legendary Creature — Merfolk NobleU

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

  2UB

  SorceryBU

  Both cards produce the same kind of effect (shared token subtype).
• Docent of Perfection // Final Iteration

  3UU

  Creature — Insect Horror // Creature — Eldrazi InsectU

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

  1UU

  Creature — Merfolk WizardU

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

  3B

  SorceryB

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

  2R

  SorceryR

  Both cards produce the same kind of effect (shared token subtype).
• Inalla, Archmage Ritualist

  2UBR

  Legendary Creature — Human WizardBRU

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

  4U

  Creature — Merfolk WizardU

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

  2U

  EnchantmentU

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

  6U

  Creature — ElementalU

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

  3W

  Kindred Sorcery — MerfolkW

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

  1U

  EnchantmentU

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

  4RR

  Legendary Planeswalker — AjaniR

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

  W

  SorceryW

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

  B

  SorceryB

  Unearth puts Stonybrook Schoolmaster onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Cryoshatter

  U

  Enchantment — AuraU

  Both cards trigger when a permanent is tapped — they fire together.
• Commodore Guff

  1URW

  Legendary Planeswalker — GuffRUW

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

  1R

  Creature — Otter WizardR

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

  1R

  Creature — Human WizardR

  Harmonic Prodigy makes Stonybrook Schoolmaster's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Stingerquill Charm

  BR

  InstantBR

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

  1G

  Creature — Badger MoleG

  Both cards trigger when a permanent is tapped — they fire together.
• Kuja, Genome Sorcerer // Trance Kuja, Fate Defied

  2BR

  Legendary Creature — Human Mutant Wizard // Legendary Creature — Avatar WizardBR

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

  5

  Legendary ArtifactC

  Both cards trigger when a permanent is tapped — they fire together.
• Namor, Atlantean King

  1WU

  Legendary Creature — Mutant Merfolk NobleUW

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

  3R

  Creature — Otter WizardR

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