All higher animals develop out of 3 germ layers:
Xerneas and Mettal loos very organic.
Xerneas represents a Neuron, Mettal represents Muscles and Blood.
That means 2 of the 3 germ layers are covered.
Almost all animals develop out of 3 layers.
The third missing layer is the Encoders_
The third legendary will represent the _"
rrd Legendary confirmed