The human supremes seem weak
Hear me out : We know only 2 supremes now, Ki song and Anvil My argument is : each of the two of them can be subdued or killed easily by a Serpant alone now that he became a titan, with a few shadows to buff him up he would kill either of them with no problem, and here is how
Ki song seems to lack abilities other than resurrectiong the dead as puppets, how do you face that? Well, the winter beast is a perfect remedy to her strength, turning her army into icicles would not take the winter beast alot of effort, especially since they are corpses...
Anvil has a better offensive power, but with prep time from sunny, he can use serpant to turn into golaiath from some distance away, and melt away anvil's swords,since they are metal
Then with a few shadow chains and some shadow javlines, he can skewer the king of swords into a shawarma
Either they are hiding some crazy abilities or maybe that's the limitation of having only 1 soul core