19 cards where the set is “iko” and the cards are in the Ikoria Godzilla Monsters Series

Zilortha, Strength Incarnate (Ikoria: Lair of Behemoths #275)
Huntmaster Liger (Ikoria: Lair of Behemoths #370)
Luminous Broodmoth (Ikoria: Lair of Behemoths #371)
Pollywog Symbiote (Ikoria: Lair of Behemoths #372)
Void Beckoner (Ikoria: Lair of Behemoths #373)
Everquill Phoenix (Ikoria: Lair of Behemoths #374)
Yidaro, Wandering Monster (Ikoria: Lair of Behemoths #375)
Gemrazer (Ikoria: Lair of Behemoths #376)
Titanoth Rex (Ikoria: Lair of Behemoths #377)
Brokkos, Apex of Forever (Ikoria: Lair of Behemoths #378)
Illuna, Apex of Wishes (Ikoria: Lair of Behemoths #379)
Nethroi, Apex of Death (Ikoria: Lair of Behemoths #380)
Snapdax, Apex of the Hunt (Ikoria: Lair of Behemoths #381)
Sprite Dragon (Ikoria: Lair of Behemoths #382)
Vadrok, Apex of Thunder (Ikoria: Lair of Behemoths #383)
Gyruda, Doom of Depths (Ikoria: Lair of Behemoths #384)
Mysterious Egg (Ikoria: Lair of Behemoths #385)
Dirge Bat (Ikoria: Lair of Behemoths #386)
Crystalline Giant (Ikoria: Lair of Behemoths #387)

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