<p>Because when she dies, she turns into Sands too. Though she is much different, as she is a "Creator" and not the result of Corruption.  The Sands of Time is the magical essensce of herself. That's why dispite the Sands of Time not being created till a certain time in Warrior Within, Sand Monsters were still present. You can say the Sands of Time IS her. Technically, you can argue she's an advanced Sand Monster. And Sand Monsters probably refers to anything created from the Sands of Time.  </p>