46 cards where the cards aren’t reprints and the card is tagged “affinity”

Emry, Lurker of the Loch (Throne of Eldraine #43)
Thoughtcast (Mirrodin #54)
Thought Monitor (Modern Horizons 2 #71)
Scion of Draco (Modern Horizons 2 #234)
Mycosynth Golem (Fifth Dawn #137)
Icebreaker Kraken (Kaldheim #63)
The Circle of Loyalty (Throne of Eldraine #9)
Myr Enforcer (Mirrodin #211)
Saheeli, the Gifted (Commander 2018 #44)
Chiss-Goria, Forge Tyrant (Phyrexia: All Will Be One Commander #25)
Reality Heist (Kamigawa: Neon Dynasty #75)
Gate Colossus (Ravnica Allegiance #232)
Draco (Planeshift #131)
Ethersworn Sphinx (Modern Horizons 2 #195)
Sojourner's Companion (Modern Horizons 2 #235)
Leyline Binding (Dominaria United #24)
Frogmite (Mirrodin #172)
Broodstar (Mirrodin #31)
Blinkmoth Infusion (Fifth Dawn #25)
Sky-Blessed Samurai (Kamigawa: Neon Dynasty #37)
Assert Authority (Mirrodin #30)
Tooth of Chiss-Goria (Mirrodin #264)
Scale of Chiss-Goria (Mirrodin #236)
Banish to Another Universe (Doctor Who #13)
Plated Onslaught (Phyrexia: All Will Be One #29)
Tangle Golem (Darksteel #151)
Gearseeker Serpent (Kaladesh #48)
Argivian Phalanx (Dominaria United #5)
Oxidda Golem (Darksteel #135)
Steelfin Whale (Modern Horizons 2 #65)
Lens Flare (Modern Horizons 2 #20)
Slag Strider (Modern Horizons 2 #141)
Spire Golem (Darksteel #145)
Dross Golem (Darksteel #119)
Razor Golem (Darksteel #137)
Chromescale Drake (Darksteel #20)
Furnace Dragon (Darksteel #62)
Brine Giant (Theros Beyond Death #44)
Qumulox (Fifth Dawn #35)
Yavimaya Sojourner (Dominaria United #191)
Stratadon (Planeshift #135)
Into Thin Air (Fifth Dawn #33)
Angelic Observer (Streets of New Capenna #1)
Somber Hoverguard (Mirrodin #51)
Gargantuan Leech (The Lost Caverns of Ixalan #107)
Quicksilver Behemoth (Darksteel #30)

Though this query has ended, its relics still slumber in New Argive.