Confidence:StrongSolidPlausibleTentativeSpeculative

• Innkeeper's Talent

  1G

  Enchantment — ClassG

  Counter synergy: both cards work with the same kind of counters, so their effects stack in a counters deck. Not necessarily a closed loop on its own.
• Animation Module

  1

  ArtifactC

  Counter synergy: both cards work with the same kind of counters, so their effects stack in a counters deck. Not necessarily a closed loop on its own.
• Oversimplify

  3GU

  SorceryGU

  Both cards produce the same kind of effect (shared token subtype).
• Emil, Vastlands Roamer

  2G

  Legendary Creature — Elf DruidG

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

  2R

  Creature — DinosaurR

  Both cards trigger when a spell is cast — they fire together.
• Cemetery Gatekeeper

  1R

  Creature — VampireR

  Both cards trigger when a spell is cast — they fire together.
• Tokka & Rahzar, Terrible Twos

  B/RB/R

  Legendary Creature — Turtle Wolf MutantBR

  Both cards trigger when a spell is cast — they fire together.
• Intellectual Offering

  4U

  InstantU

  Intellectual Offering untaps all (or many) permanents, refreshing Geometric Nexus's tap activation.
• Roiling Vortex

  1R

  EnchantmentR

  Both cards trigger when a spell is cast — they fire together.
• Kianne, Dean of Substance // Imbraham, Dean of Theory

  2G2UU

  Legendary Creature — Elf Druid // Legendary Creature — Bird WizardGU

  Both cards produce the same kind of effect (shared token subtype).
• Deekah, Fractal Theorist

  4U

  Legendary Creature — Human WizardU

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

  2U

  EnchantmentU

  Unstoppable Plan untaps all (or many) permanents, refreshing Geometric Nexus's tap activation.
• Hearthborn Battler

  2R

  Creature — Lizard WarlockR

  Both cards trigger when a spell is cast — they fire together.
• Ambitious Augmenter

  G

  Creature — Turtle WizardG

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

  2R

  Creature — Minotaur PilotR

  Both cards trigger when a spell is cast — they fire together.
• Unwinding Clock

  4

  ArtifactC

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

  3GG

  Creature — SpiritG

  Seedborn Muse untaps all (or many) permanents, refreshing Geometric Nexus's tap activation.
• Kasmina, Enigma Sage

  1GU

  Legendary Planeswalker — KasminaGU

  Both cards produce the same kind of effect (shared token subtype).
• Primo, the Unbounded

  XGGU

  Legendary Creature — Fractal WolfGU

  Both cards produce the same kind of effect (shared token subtype).
• Jadzi, Steward of Fate // Oracle's Gift

  2UXXU

  Legendary Creature — Human Wizard // SorceryU

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

  4G

  EnchantmentG

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

  5

  Legendary ArtifactC

  Paradox Engine untaps all (or many) permanents, refreshing Geometric Nexus's tap activation.
• Lattice Library

  XGG

  EnchantmentG

  Both cards produce the same kind of effect (shared token subtype).
• Zimone, All-Questioning

  1GU

  Legendary Creature — Human WizardGU

  Both cards produce the same kind of effect (shared token subtype).
• Berta, Wise Extrapolator

  2GU

  Legendary Creature — Frog DruidGU

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