23 cards where the illustration contains “leviathan”

Aethersquall Ancient (Kaladesh #39)
Archipelagore (Ikoria: Lair of Behemoths #283)
Benthic Behemoth (Tempest #54)
Breaching Leviathan (Commander 2014 #12)
Charix, the Raging Isle (Zendikar Rising #49)
Charix, the Raging Isle (Zendikar Rising #386)
Grozoth (Ravnica: City of Guilds #53)
Inkwell Leviathan (Conflux #30)
Jokulmorder (Coldsnap #37)
Kederekt Leviathan (Shards of Alara #48)
Kiora, Behemoth Beckoner (War of the Spark #232)
Kiora's Dambreaker (War of the Spark #58)
Leviathan (The Dark #30)
Nemesis of Reason (Secret Lair Drop #1302)
Pearl Lake Ancient (Khans of Tarkir #49)
Polar Kraken (Ice Age #89)
Segovian Leviathan (Legends #76)
Simic Sky Swallower (Dissension #130)
Sky Swallower (Guildpact #34)
Slinn Voda, the Rising Deep (Dominaria #66)
Tatyova, Steward of Tides (Dominaria United #222)
Trench Gorger (Commander 2011 #65)
Xyris, the Writhing Storm (Commander 2020 #18)

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