#I'm still not certain of her feats back in her hero days... I've been toying with the idea of her having fought the black arms

[aquaticmines]

The resurrection of my Sonic fixation after 14 years of dormancy necessitated I take another stab at my childhood Sonic OC

This is Coatl the Echidna. She is formerly-a-normal-mobian currently-a-golem-of-sorts, from a different ancient echidna tribe than the one Knuckles is descended from. A great hero of her time 3,000 years ago, she voluntarily underwent the ritual to take on this form in order to prepare for battle against Pachacamac's invading army. Her golem form was intended to allow her to offensively channel the power of the Master Emerald*. However, during that time, the Knuckles Tribe were instead destroyed by Chaos for their hubris. Fearing that they themselves had taken a step too far and would likewise suffer the wrath of a god for it, instead of waking Coatl up, her tribe elected to seal her away in a tomb and put the whole thing to rest.

She's accidentally awoken in the modern day, deeply confused and not knowing what happened or why she's been asleep for so long... or what anyone is saying, leading to a long series of misunderstandings that are eventually cleared up. (More thoughts below cut)

Story wise she functionally serves as someone who can share a bit of Echidna culture with Knuckles (extremely old Echidna culture, but still). He's still stuck as the Last Echidna, considering she's a severed soul tethered to a clay body, but at least he's not completely alone anymore, and has someone who can keep an eye on the ME and afford him a bit more freedom.

*It doesn't really work out this way, given the Master Emerald is sentient -- instead Coatl ends up with a somewhat symbiotic/parasitic relationship with the Master Emerald, where she's able to use its power when it wants her to, and likewise is at times possessed by it and used as a tool through which it extends its will. She resents it to a certain degree, while also revering it as a god.