>>35805375Fenrir is the wolf destined to eat Odin in the Ragnarok (or maybe it's based on Skoll and Hati, the wolves that hunt the gods of Sun and Moon) and Hel/Hela is the goddess of dead that is half dead and half live, looking half beautiful and half horrible, that's why Zygarde's wings have Xerneas (life) and Yveltal (death) colors. Also the gems of
her chest represent a rainbow like the Bifrost, the rainbow bridge that connects Midgard and Asgard. Why? Because Yveltal is the great eagle of Asgard (the high realm of gods, the sky, the Y angle) and Xerneas is the deer of Midgard (the low realm of mortals, the ground, the X angle. These deer are also know for having branches-shaped horns so they can feel like if they live on the top of the tree and from these horns you can see colored gems growning like fruits, like it happens with Xerneas), so the rainbow in Zygarde's chest represent the bridge between the death and the life, Yveltal and Xerneas.
Also these 3 specific creatures aren't random, Fenrir, Jormungandr and Hela are the children of the god of mischief Loki and the giant Angborda