So their names are Yggdrasil, Nidhogg, and...Eagle. Wouldn't it make more sense for the trainer to name the Yveltal Vedfolnir, to complete the reference? The eagle on Yggdrasil doesn't have a name, but the hawk does, naming the Yveltal after the lesser creature would be better than leaving him essentially nameless.
So their names are Yggdrasil, Nidhogg, and...Eagle. Wouldn't it make more sense for the trainer to n