18 cards where the text includes “outside” and it’s legal in Vintage

Burning Wish (Conspiracy: Take the Crown #152)
Coax from the Blind Eternities (Eldritch Moon #51)
Cunning Wish (Judgment #37)
Death Wish (Judgment #64)
Fae of Wishes // Granted (Throne of Eldraine #44)
Glittering Wish (Time Spiral Remastered #253)
Golden Wish (Judgment #12)
Invasion of Arcavios // Invocation of the Founders (March of the Machine #61)
Invasion of Arcavios // Invocation of the Founders (March of the Machine #61)
Karn, the Great Creator (Ravnica Remastered #1)
Legion Angel (Zendikar Rising #23)
Living Wish (Masters 25 #179)
Mastermind's Acquisition (Rivals of Ixalan #77)
Research // Development (Dissension #155)
Ring of Ma'rûf (Masters Edition #163)
Spawnsire of Ulamog (Rise of the Eldrazi #11)
The Raven's Warning (Kaldheim #227)
Vivien, Arkbow Ranger (Core Set 2020 #199)
Wish (Adventures in the Forgotten Realms #166)

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