User blog comment:BannedLagiacrus/Monster Appreciation Week: Great Jagras/@comment-26421638-20180203144756/@comment-5020152-20180203180538

"Pity for the fanged wyvern class" - pretty much every new beast in the class is weaker than Zinogre, so by your logic, they're all disappointments anyway. Great Jagras isn't aquatic (bearing in mind that all leviathans in the series swim through something, whether it's water, lava, or sand) and doesn't have any frog-like traits, so neither of those alternative classifications make much sense. He's a reptile with mammalian characteristics, seems pretty logical if you ask me.