Tawnos, the Toymaker

Whenever you cast a Beast or Bird creature spell, you may copy it, except the copy is an artifact in addition to its other types. (The
copy becomes a token.)
A Sheikah researcher and colleague to Purah
who also investigates ancient relics. He is
Hyrule's foremost authority on Guardians.
While rebellious, he is largely unwilling to
stand up to Purah.