Demon Duke

Ailsa clapped with glee, clearly happy with her handiwork. Not only were Frost Thunder Giants Demon Dukes, but they also happened to be extraordinarily powerful even among Demons of their rank. For her first summon, it really wasn't a bad pull at all. 

Quibus Faeries had far more leeway when it came to random summons. They could even direct their choices to a certain extent. Ailsa wanted to summon a Demon compatible with Ryu, and she had landed on a jackpot. Not only would this Frost Thunder Giant be powerful in battle, afterwards, should it not be good enough to become part of Ryu's permanent lineup, its flesh and blood were incredibly valuable resources.