Note: this is constructive critism, not winning or complaints.
So i have a couple of suggestions on Z'othra, first of all i think his biggest problem is that he relyes on the beam of pure essence (his laser eyes basically) to kill higher tier characters like the artifical god, the shattered one, and almost anyone above tier 6, so what im trying to say is make him deal more damage or have other options, his fist are pretty weak considering he is a god-like entity, so one of the options it so make him deal more damage by punching sort of like the great champion, a strong punch with cooldown so it can't get spammed, the shell also can have this ability but a weaker version, second is that he doesn't have a lot of durability, TSO (im tired of saying their full names) also doesn't have a lot of durability but it's because he has a high damage output because he can unlock others abilities wich are mostly damage based, AG has a lot of durability but it's because he need to resist damage while scanning people, meanwhile Z'othra is a point in between, besides his force field he doesn't have a lot of defensive or offensive capabilities (he has the laser but i already talked about that), an increase to his health bar would be perfect or a shield-like ability like the sightless would also be good alongside the changes i already suggested earlier in the text, oh and i almost forgot his breeze ability, it's cool but lets be honest it's basically useless apart from dramatic effect so something like a debuff to anyone who gets hit by it at least in my opinion would be interesting during fights.

Sorry for making u read all this just thought it would be cool to add but if it doesn't get added it's okay.