Confidence:StrongSolidPlausibleTentativeSpeculative

• Morska, Undersea Sleuth

  GWU

  Legendary Creature — Vedalken Fish DetectiveGUW

  Both cards trigger when you draw a card — they fire together.
• The Mind Stone

  1W

  Legendary Artifact — Infinity StoneW

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Aether Syphon

  1UU

  ArtifactU

  Both cards trigger when you draw a card — they fire together.
• Master's Councillors

  1U

  Creature — Human AdvisorU

  Both cards trigger when you draw a card — they fire together.
• Displacer Kitten

  3U

  Creature — Cat BeastU

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Brago, King Eternal

  2WU

  Legendary Creature — Spirit NobleUW

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Teferi's Tutelage

  2U

  EnchantmentU

  Both cards trigger when you draw a card — they fire together.
• Sphinx's Tutelage

  2U

  EnchantmentU

  Both cards trigger when you draw a card — they fire together.
• Psychic Corrosion

  2U

  EnchantmentU

  Both cards trigger when you draw a card — they fire together.
• Brought Back

  WW

  InstantW

  Brought Back returns creatures from the graveyard to the battlefield, re-firing Well of Ideas's enter-the-battlefield effect.
• Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar

  U

  Legendary Creature — Moonfolk Wizard // Legendary Planeswalker — TamiyoGU

  Both cards trigger when you draw a card — they fire together.
• Orcish Bowmasters

  1B

  Creature — Orc ArcherB

  Both cards trigger when you draw a card — they fire together.
• Inquisitor Eisenhorn

  2UB

  Legendary Creature — Human InquisitorBU

  Both cards trigger when you draw a card — they fire together.
• Consecrated Sphinx

  4UU

  Creature — SphinxU

  Both cards trigger when you draw a card — they fire together.
• Raven Eagle

  2B

  Creature — Bird AssassinB

  Both cards trigger when you draw a card — they fire together.
• King T'Challa // Black Panther, Hope Enduring

  1WU4WU

  Legendary Creature — Human Noble Hero // Legendary Creature — Human Warrior HeroUW

  Both cards trigger when you draw a card — they fire together.
• Faerie Mastermind

  1U

  Creature — Faerie RogueU

  Both cards trigger when you draw a card — they fire together.
• Yuna, Hope of Spira

  3GW

  Legendary Creature — Human ClericGW

  Yuna, Hope of Spira returns creatures from the graveyard to the battlefield, re-firing Well of Ideas's enter-the-battlefield effect.
• Teferi, Temporal Pilgrim

  3UU

  Legendary Planeswalker — TeferiU

  Both cards trigger when you draw a card — they fire together.
• Scrawling Crawler

  3

  Artifact Creature — Phyrexian ConstructC

  Both cards trigger when you draw a card — they fire together.
• Xyris, the Writhing Storm

  2GUR

  Legendary Creature — Snake LeviathanGRU

  Both cards trigger when you draw a card — they fire together.
• Detective of the Month

  2U

  Creature — Human DetectiveU

  Both cards trigger when you draw a card — they fire together.
• Zimone and Dina

  BGU

  Legendary Creature — Human DryadBGU

  Both cards trigger when you draw a card — they fire together.
• Red Ghost, Intangible Genius

  2UR

  Legendary Creature — Human Scientist VillainRU

  Both cards trigger when you draw a card — they fire together.
• Keranos, God of Storms

  3UR

  Legendary Enchantment Creature — GodRU

  Both cards trigger when you draw a card — they fire together.