EUDIAL

After deciding to learn how to summon a being, Eudial heads down to the library to peruse the magic sections. After rummaging around a bit, she locates a spell in an arcane language she gets the gist of but not the specifics, and tries it out...

and discovers the ability to use a Patronus!

Eudial's patronus takes the form of a "Kirin" - the Chinese equivelant to the unicorn, although is a bit more dragonish than the Unicorn itself. It resembles a Unicorn with light scaling and hair that moves like fire. The Patronus is a potent spirit creature, capable of busting through simpler magics are repelling creatures powered by black magic such as the undead as well as fighting more conventional foes side by side. It only lasts as long as Eudial can maintain sufficient concentration.