bio- Tridax lost his legs while fighting the visorak attacking him.the visorak took him to Sidorak. Sidorak seeing a valuable ally. he promised to heal Tridax if he pledged him self to sidorak. Tridax did so and became what he is before you. when sidorak died he was proclaimed king of the visorak. And is currently trying to gather an army strong enough to over through the toa order.