This is my design for an alternate version of Core Frisk called Epoch!Core Frisk.

Epoch stands for timeless and important.

She has all the known abilities and characteristics of the standard Core!Frisk, but with a few differences.

This Core!Frisk is not non-binary, she actually has a gender, in this case she is a girl.

Her height is considerably taller than the original Core!Frisk, she is about 5'2 (152cm) feet tall (still very short, lol), unlike the original version, who is 4'0 (121cm) feet tall.

In terms of personality, this Core!Frisk has a great sense of maturity, being much less cheerful and fun, so much so that she rarely smiles.

She has an Omega Timeline, but her Omega Timeline does not serve as a type of shelter, but rather an Industry, made in the White Void, in which she manages unlikely events and corrects AU failures. She basically acts as a moderator of the Multiverse.

Her age is between 12 and 14 years old, but because she is timeless, her age is merely insignificant.

Epoch, unlike the original Core!Frisk, has a broader knowledge of battle, she adopted a style of fighting exclusively with her feet, not using her hands.

Among her powers, they are the same as Core!Frisk's, with the difference that she can travel to any type of universe, regardless of whether it is from Undertale or not, she is able to travel.

She has no enemies, and her alignment is good, she has no evil intentions.

As for her appearance, this is clear in the drawing: she has the same haircut as Core!Frisk, she has the same sweater, but with the difference that she wears pants instead of shorts. She wears high-waisted pants that are ripped from the knees down, exposing her legs, and she also has two star symbols with a purple part, brown belts with gold, and finally, she always wears her pants over her clothes.

She also wears brown shoes like Core!Frisk.

A somewhat unexpected curiosity: this design is not her canonical one; Epoch does not wear brown shoes, even though she does. However, she wears black high heels, yes, high heels.

I chose to have her wear different types of high heels because this brings greater originality to her, and also expresses very well that she is very mature and adult, even though she is still a timeless child.