Confidence:StrongSolidPlausibleTentativeSpeculative

• U.S.S. Stargazer, Here and There

  3

  Legendary Artifact — SpacecraftC

  Both cards produce the same kind of effect (shared token subtype).
• Minn, Wily Illusionist

  1UU

  Legendary Creature — Gnome WizardU

  Both cards produce the same kind of effect (shared token subtype).
• Mysterio, Master of Illusion

  3U

  Legendary Creature — Human VillainU

  Both cards produce the same kind of effect (shared token subtype).
• The Theorist, Jace Beleren

  2UU

  Legendary Planeswalker — JaceU

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

  B

  SorceryB

  Reanimate puts Chronozoa 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 Chronozoa onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Alaundo the Seer

  2GU

  Legendary Creature — Human ShamanGU

  Alaundo the Seer removes time counters from suspended cards, so Chronozoa comes out of suspend sooner — and any "whenever a time counter is removed" payoff on it fires each time.
• Sefris of the Hidden Ways

  WUB

  Legendary Creature — Human WizardBUW

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

  2B

  EnchantmentB

  Recurring Nightmare puts Chronozoa 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 Chronozoa onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Holo-Engineer

  2GG

  Creature — Human ArtificerG

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

  1B

  Enchantment — AuraB

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

  1B

  SorceryB

  Exhume puts Chronozoa onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Life // Death

  G1B

  Sorcery // SorceryBG

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

  2B

  SorceryB

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

  1B

  SorceryB

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

  BB

  SorceryB

  Soul Exchange puts Chronozoa onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Murmuring Mystic

  3U

  Creature — Human WizardU

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

  4UU

  Legendary Planeswalker — MordenkainenU

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

  2RR

  Creature — DragonR

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

  1WB

  Enchantment — SagaBW

  Ascent of the Worthy puts Chronozoa onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Sphinx of False Conclusions

  2UU

  Creature — Sphinx IllusionU

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

  4GG

  Creature — Hirogen WarriorG

  Both cards produce the same kind of effect (shared token subtype).
• Adversary by Algorithm

  2G

  SorceryG

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