15 cards where the illustration contains “darkness”

Civic Wayfinder (Ravnica: City of Guilds #157)
Clinging Darkness (Ravnica: City of Guilds #80)
Demonic Bargain (Innistrad: Crimson Vow #103)
Gloomlance (Shadowmoor #67)
Gold Mine (Mystery Booster Playtest Cards 2019 #116)
Lantern Scout (Battle for Zendikar #37)
Nightmare Void (Ravnica: City of Guilds #100)
Reave Soul (Magic Origins #115)
Surge of Zeal (Ravnica: City of Guilds #146)
Taigam's Scheming (Khans of Tarkir #57)
Tainted Aether (Seventh Edition #167)
Terror (Limited Edition Alpha #130)
Undercity Shade (Ravnica: City of Guilds #110)
Whelming Wave (Born of the Gods #57)
Woodwraith Corrupter (Ravnica: City of Guilds #240)

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