Arianna Sterling, also known as Ari Stern, is the ancestor of the Sterling family and the very first Mecha Racer of the family. Her Mecha Beast was a W-LF Model, like Bailey's, but instead Arianna's was white and gold. Her blaster was a Z-Striker K9, the first ever made. Her's was white and gold, to match her mecha.

Slugterra characters

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