Confidence:StrongSolidPlausibleTentativeSpeculative

• Osgood, Operation Double

  2UU

  Legendary Creature — Human Alien ShapeshifterU

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

  4U

  InstantU

  Intellectual Offering untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Unstoppable Plan

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Seedborn Muse

  3GG

  Creature — SpiritG

  Seedborn Muse untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Unwinding Clock

  4

  ArtifactC

  Unwinding Clock untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Paradox Engine

  5

  Legendary ArtifactC

  Paradox Engine untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Dramatic Reversal

  1U

  InstantU

  Dramatic Reversal untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Blinkmoth Infusion

  12UU

  InstantU

  Blinkmoth Infusion untaps all (or many) permanents, refreshing Maskwood Nexus's tap activation.
• Black Market Connections

  2B

  EnchantmentB

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

  XGG

  EnchantmentG

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

  1GU

  Enchantment — SagaGU

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

  2G

  Kindred Sorcery — ShapeshifterG

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

  1W

  InstantW

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

  2

  Artifact — EquipmentC

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

  5W

  Creature — Elemental IncarnationW

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

  2WW

  Creature — ShapeshifterW

  Both cards produce the same kind of effect (shared token subtype).
• Vizier of Many Faces

  2UU

  Creature — Shapeshifter ClericU

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

  3

  ArtifactC

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

  LandC

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

  3

  ArtifactC

  Maskwood Nexus has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.
• Kurkesh, Onakke Ancient

  2RR

  Legendary Creature — Ogre SpiritR

  Maskwood Nexus has activated abilities that aren't mana abilities, fueling Kurkesh, Onakke Ancient's activation-trigger.