Let's come up with an amphibian race!

53-57th years of the War of the Pretenders. Ragnar II managed to negotiate with the Nameless to secure his victory. Thanks to their strength, all competitors were crushed. 60-95th years, the Golden Age of the Underwater Kingdom. 96th year. The Shadow begins to grow, and disputes arise among the common inhabitants of the kingdom. 102nd year. The Great Exodus. All Hydras leave the Underwater Kingdom and ascend to the Dungeon, where they encounter the Dark Elves.