Tiresia is a Chaos Huntress, she is not friendly and kills in the name of Chaos.
She is a tall, slim and dark-skinned woman. She believes others would be jealous of her, because in spite of the touch of the warp, still looks human.
Tiresia is armed with a longbow and different types of arrows, and rides on animlas that look like flying stingrays which are known as Skysharks, these animals are very dangous even a Space Marine Land Raider can be destroyed by them in a matter of seconds.
In her youth she beheaded all seven Brothers of the Nethermost Darkness.
Tiresia is not loyal to the Emperor of Mankind she is a Chaos follower.