46 cards where (the text includes “thirteen” or the text includes “13” or the power = 13 or the toughness = 13)

Abandoned Campground (Duskmourn: House of Horror #255)
Archive Trap (Zendikar #41)
Army of the Damned (New Capenna Commander #242)
Blasphemous Act (Duskmourn: House of Horror Commander #160)
Bleed Dry (Innistrad: Crimson Vow #94)
Bleeding Woods (Duskmourn: House of Horror #257)
By Invitation Only (Innistrad: Crimson Vow #5)
Chant of the Skifsang (Dark Ascension #31)
Cool Fluffy Loxodon (Unfinity Sticker Sheets #28)
Dance with Calamity (March of the Machine Commander #29)
Death's Shadow (Double Masters #82)
Demonic Bargain (Innistrad: Crimson Vow #103)
Disciple of Perdition (Jumpstart 2022 #23)
Elbrus, the Binding Blade // Withengar Unbound (Dark Ascension #147)
Elbrus, the Binding Blade // Withengar Unbound (Dark Ascension #147)
Emrakul, the Promised End (Eldritch Moon #6)
Etched Cornfield (Duskmourn: House of Horror #258)
Gallifrey Stands (Doctor Who #132)
Glass-Cast Heart (The Lost Caverns of Ixalan Commander #199)
Into the Maw of Hell (Innistrad #150)
Invasion of Innistrad // Deluge of the Dead (March of the Machine #115)
Invasion of Innistrad // Deluge of the Dead (March of the Machine #115)
Jerren, Corrupted Bishop // Ormendahl, the Corrupter (Innistrad: Midnight Hunt #109)
Jerren, Corrupted Bishop // Ormendahl, the Corrupter (Innistrad: Midnight Hunt #109)
Krosan Cloudscraper (Murders at Karlov Manor Commander #175)
Lakeside Shack (Duskmourn: House of Horror #262)
Ludevic's Test Subject // Ludevic's Abomination (Innistrad #64)
Ludevic's Test Subject // Ludevic's Abomination (Innistrad #64)
Murky Sewer (Duskmourn: House of Horror #263)
Neglected Manor (Duskmourn: House of Horror #264)
Olivia's Midnight Ambush (Innistrad: Midnight Hunt #118)
Peculiar Lighthouse (Duskmourn: House of Horror #265)
Raucous Carnival (Duskmourn: House of Horror #266)
Razortrap Gorge (Duskmourn: House of Horror #267)
Ruthless Disposal (Eldritch Moon #103)
Shadowheart, Sharran Cleric (Alchemy Horizons: Baldur's Gate #10)
Shivan Meteor (Time Spiral Remastered #188)
Sorin the Mirthless (Innistrad: Crimson Vow #131)
Startled Awake // Persistent Nightmare (Shadows over Innistrad #88)
Startled Awake // Persistent Nightmare (Shadows over Innistrad #88)
Stensia Uprising (Innistrad: Crimson Vow #178)
Strangled Cemetery (Duskmourn: House of Horror #268)
The Day of the Doctor (Doctor Who #121)
Tragic Fall (Modern Horizons 2 #104)
Tragic Slip (Commander Masters #192)
Tree of Perdition (Eldritch Moon #109)
Tree of Redemption (Masters 25 #191)
Triskaidekaphile (Innistrad: Midnight Hunt #81)
Triskaidekaphobia (Masters 25 #110)
Unhallowed Phalanx (Innistrad: Crimson Vow #135)
Vault 13: Dweller's Journey (Fallout #26)

It is the moment of discovery, the triumph of the mind, and the end of these results.