23 cards where the text includes “own from outside the game”

Karn, the Great Creator (Ravnica Remastered #1)
Dart Throw (Unfinity #208a)
Cover the Spot (Unfinity #207a)
Photo Op (Unfinity #83)
Knife and Death (Unfinity #77)
Animate Object (Unfinity #33)
Grizzled Huntmaster (Alchemy: Innistrad #49)
Wish (Adventures in the Forgotten Realms #166)
Glittering Wish (Time Spiral Remastered #253)
The Raven's Warning (Kaldheim #227)
Fae of Wishes // Granted (Throne of Eldraine #44)
Vivien, Arkbow Ranger (Core Set 2020 #199)
Living Wish (Masters 25 #179)
Mastermind's Acquisition (Rivals of Ixalan #77)
Spike, Tournament Grinder (Unstable #69)
Burning Wish (Conspiracy: Take the Crown #152)
Coax from the Blind Eternities (Eldritch Moon #51)
Ring of Ma'rûf (Masters Edition #163)
Research // Development (Dissension #155)
Collector Protector (Unhinged #7)
Death Wish (Judgment #64)
Cunning Wish (Judgment #37)
Golden Wish (Judgment #12)

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