Thurisaz (thoo-ree-sawz):

Meaning: Thorn. The thorn can protect or pierce.
Token: Rose key
Creatures: Sprites, giants, fluter birds, wasps, rose fairies. 

Journal of Discovery

Message to the faithful and true leader of Giervalk: Power can be used for good or evil. Act with integrity, resist temptation and seek the truth.
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Guardian History

Elsa was the original guardian. Her power was passed down to Gwen who was kidnapped by Malik during the Great War. Her daughter Syersha was forced to marry a soldier of Malik’s and gave birth to Golriz. Born under Malik’s rule. ​