Also gishki wanted prime materials for their rituals and the gusto tribe is in a forest so they attack and kill most of them(they wanted to attack the laval first though but they didnt have enough food or something)so the gem knights protect the remaining gusto
Also the gishki revived the steelswarms or something this leads to the vylons comming from heaven to help and they give powers to each tribe,also after some long events everyone but winda dies and she goes to the temple to call on sophia the godess of rebirth but winda gets killed by her
I didn't like the part in which Vylons turned their back on humanity and wanted to eradicate them. I mean... even the gods from heaven are emotionally unstable or what? some day they decide they need to kill everyone and they do it. They were supposed to be bring order, not chaos.
I guess that's why Horakhty is the only one I trust. Everyone else = Emotionally unstable / become murderers easily.
They do get corrupted by Verz, though.
Their wish to simply erase all the tribes came from that.
It was not mentioned in Master Guide 3, but in Duel Terminal Master Guide, it is mentioned that Verz did corrupt them from inside through Gishki Noellia, who was corrupted when she tried to summon help, but failed, and instead gets infected by Verz.