Endorfea has the upper body of human and the abdomen and legs of a spider.
She has long purple hair and she is beautiful but she is also quite dangerous.
Although she seems to be welcoming and charming she is one of the most dangerous and unscrupulous creatures in Dreamland.
It can be concluded that her powers are related to spiders. Since Endorfea is one of the five most powerful Nightmare Lords, she is known to be very powerful and very dangerous.