4 kings and sorcerer of the black cauldron.

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due to all the races wars and their need to gather resources a powerful magical artifact that gained awareness decided to create a chain of islands to take advantage of the conflicts years after its master was defeated and summon 4 kings to manage the different areas and a overseer and guardian to protect it as a last resort so as to grow in power they are the

Beast king Kulana with the ability to create beasts from imagination and shadows that slowly gain sentience.

DATA king Liliruca (lily) can scan creatures and objects into spirits they can be transformed into to Gain new forms and power is a scythemaster and has her own inner spirit that can take over where the wild instincts to fight when she can't objects can become attack chips, powers to use later such as a porcupine for a pin shot attack.

immortal king Hinoa/Yuena a miko that fused with a dragon stone in the place of her heart that is possessed by a dragon spirit uses an elemental snake sword and as long as the stone has even a single big piece she can regenerate from that piece and has a draconic Armour she can summon to wear for defense the dragon soul she gave the name yuena she treats as a sister can take over and change the body To grow scales and has mastery over multiple weapons made of elements when they are in sync they can access full dragon form that can spread a blight on the enemy that sends them into a frenzied state and then can absorb the frenzy and enemy life force to weaken them and strengthen her affects anything that has living tissue

Island King Kayda/Garugan that can in addition to the abilities they have(last chapter)each gain new transformations Kayla gets two New beast forms and Garugan Gets two new forms as well one is a more humanoid Mecha form that looks like a knight with a mace and a skull face The other is a leviathan like creature and a human form of it's own can control the environment and movements of all other creatures to a minor degree on her area like telling monsters to leave something alone or changing in the area of a forest clearing to a lake that wasn't there before [where she gets her title]but the other three kings and overseer on the islands and is the leader of the 4 Kings Adopted a wandering spirit as a pet

and the last is the daughter of the Black cauldron created as an overseer to the four Kings as security against betrayal based off of the lich that use The cauldron for centuries but made living by the powers of the Kings summoned so has minor powers from all four and is the only one allowed near The cauldron as it's last line of defense lives on the volcanic Island and uses the powerful energies escaping The cauldron to mutate living creatures or revive skeletal bones to march across the other Islands when land Bridges rises from the Waters around the volcano to the other Islands randomly to send the creatures to Roam and are hostile to everything but The cauldron and their creator also bring treasures and mystical items along with them the stronger the creature the better the treasures.