Iksalion

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The birdlike iksalions proved remarkably intelligent constructs and were thus employed by Allagan engineers to perform maintenance tasks requiring a capacity for advanced problem solving, though notable flaws included a weakness against the elements and certain genetic instabilities. The offspring of these creatures would eventually evolve over the next four millennia to become the Ixal—a fact of which none of their tribe remains aware.

— Encyclopædia Eorzea vol 1, page 303