Okay. My Au Sans was actually a dream I had about 2 years ago when I was in high school. It was originally called Berserktale (I'll explain why) but that name is taken...oh well! So. About Wild...
Name: Wild!Sans or Wild

AU: CodeWild

Appearance:

White-boned, sharp fangs (like Ink when he makes that scary face), slitted eyes (blue pupil when serious or on verge of berserk) and clawed hands.

Berserk form: Black-boned w/ multi-colors moving around, one blue visible (left eye) and a hidden devilish grin.

Clothing:
Black shirt, silver chain necklace with spikes, black jacket w/ pitch black floof going down his shoulder and midnight blue highlights (look at the picture), black pants w/ silver chains

Attack Powers/Weapons: He has the typical abilities of Sans and travel through AUs. He predict an attack by reading someone's code/soul. He has an ability called Download where Wild absorbs the coding of an attack and sends the attack right back whether as it was or as his own attack. For example, Error attacks Wild with his strings so Wild can absorb it and send it back as his own attack. Pretty Op right?(He's a Sans....they always got something op) The bad thing is overuse of Download leads to Wild's berserk form and he'll attack anyone friend or foe. Wild also has a black desert eagle magnum with pale silver design that shoot magic out. 

Personality: He's pretty chilled for the most part but is passive aggressive (that quiet storm when angry). He definitely gets a bit pissed when Ink and Error are fighting, destroying things that he needs to fix. He has the urge of caring big brother so he tends to be very protective who he sees as younger sibs (definitely Blue, Dream, and the Skelekids(PJ and others)). He still cares for everyone, even the bad ones. He can be indifferent about things but will enjoy everything. He doesn't give two shitz about what people say about him cause he cares only for his opinions of himself. He's enjoy messing with Ink, chillin' somewhere hidden in the AUs, spending quality time with Skelekids when he's free.

He loves Hot sauce. (I didn't know where to put it)

Crush: Abyss Sans. He likes how he deals with Error but he can't stop with him. (cause he's, well, everywhere). He finds Abyss cute and loves to make him blush, but overall just hangs out with him. He loves him so he WILL give someone a rough time (get it?) for messing with his sweetheart (*cough* NightmareandError *cough*).

Backstory: Wild lives in, obviously, Codewild but also dwells in a space in the Void where the coding of all the multiverse(s) resides (Data-sphere).It's like the Doodle-sphere but with codes. He monitors and guards over the coding of every single thing, living or not. Ink draws everything to life while Wild does the coding. He gives everything cause and effect. Fire is suppose to generate heat and burn (well most fires). Wind blows, trees moves etc. When an AU gets destroyed or dies, he collects the coding that scattered and stores them somewhere in the Data-sphere, hence why he gets tick off when Error and Ink are fighting. Basically, he's like the middle man between Ink and Error. The other AUs don't know about him because of the Codex so it's hard to find him even when he's applying the codes when Ink is creating AUs, unless he leaves and reveal himself in the AUs.  

A proud member of Le Floof Army.

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Welp. I'm done with my au sans. I wish to turn this into a full blown comic. Sorry for the long arse explanation for Wild. If you want a short story or one shot let me know. And. Well. αντίο!