Okay I'm no artist so feel free to shit on the drawing but I just had an idea, megas for the other two Zygarde forms
>10% Zygarde grows in size but due to the low amount of cells, parts of its body are missing and seen as non-physical pure energy (like Perfect Mega Zygarde's body)
>to keep (and even increase) its speed despite the fragility of its legs the energy body multiplies the number to eight
>the closed "third eye" 10% and 50% Zygarde have has extended like a giant slit from its head to its loin, and while it's not a proper open eye (to signify it's not in its strongest, full form) the energy leaks emulating hair
>this way the canine traits become equine and 10% Zygarde, normally inspired by Fenrir, one of the three children Loki had with Angrboda (along Jogmungandr, 50% Zygarde, and Hela, Perfect Zygarde) becomes a different child of Loki, Sleipnir
>turns Thousand Arrows into Land's Spear (reference to Odin, he who rides Sleipnir), the gem of its chest fires a single shot with the same properties as Thousand Arrows but also deals super effective damage to flying types or levitate/baloon users (once they are on the ground it's functionally the same as Thousand Arrows)
Don't know what to do for 50% Mega Zygarde, maybe making it humanoid-snake hybrid to represent how close it is to perfection and give it a vague tree trunk to represent Yggdrasil? Obviously an improved version of Thousand Waves, too.
