Here's the master. Could probably have polished it a little more but I wanted to get the sheet up before bed. Wasn't sure on the amount of limits that'd be appropriate, so I left them undetermined for now. 

[hider=Master]
[center][img]https://safebooru.org//images/3826/39ba6c42a52c1d227dcd5d883ca010b6c71493a5.jpg?3997438[/img][/center]
[center][b]Basics[/b][/center]
[b][i]Titles:[/i] All the World’s Evils (False), Queen of the Threefold Beasts, Sin-Devouring Serpent, Regulus Magnus, Baphomet’s Seventh Seal (All self-given)[/b]
[b][i]Name:[/i] Katerina Trisomatus[/b]
[b][i]Sex:[/i] Female[/b]
[b][i]Alignment:[/i] True Evil (Chaotic Good)[/b]

History: [hider=History]
The Trisomatus family were one of many who used the meaning of various ancient monsters to power their magecraft. Though they were an ancient family, they fell into disrepair for various reasons. The dispersal of phantasmal species to the far side of the world, the natural consequences of beast magecraft as a loss of humanity, and problems unique to their own family. The loss of meaning of ‘chimera’ as a singularly powerful beast was already a problem, and, worse, the family’s ability to create new heirs became increasingly poor over time. It was simply a matter of lacking in fertility, but even if it had been purely mundane, such a thing will lead a family to ruin over the scale of time a Magus family needs.

The family stabilized their craft into the modern era of Christianity, by drawing together the meaning of ‘monster’ and ‘demon’, in addition to various meanings of serpents, lions and goats. But nothing could fully regain their past glory. Out of desperation, they turned to a new way of acquiring heirs. Scouring the country for those who naturally fit their purposes, and bringing together three into one.

Katerina is the latest in this line. Not a family by blood, but a line of Magi nonetheless. She doesn’t remember the circumstances of becoming part of this family, nor who she was before being coloured with their magecraft. All she is left with is a vague sense of being much greater than whoever she used to be - well, it’s not something that bothers her, in that case. And everyone changes as they grow up, right?

Even if the Trisomatus family is certainly in decline, a place in the Clock Tower is still a given for their current scion. Though she spent time there, she made no real friends or alliances. Those around her were intimidated by her aura of great evil - or that’s what she told herself. Probably, many of them were simply looking down on her. Even in the world of magecraft, Chuunibyou can still be an embarrassment, it seems. 

As for her answer to Chaldea’s call, it was simply a matter of proving oneself. Perhaps it was simply that she took the threat more seriously than many around her. 
[/hider]
[center][b]Magecraft[/b][/center]
[b][i]Magic Circuits Quality:[/i] E[/b]
[b][i]Magic Circuits Quantity:[/i] E[/b]
[b][i]Magical Affinity:[/i] Fire[/b]
[b][i]Attribute:[/i] Consumption[/b]

[center][b]Minor Magecraft[/b][/center]
[b][i][/i][/b][list][*]Sin Nexus: Using the concepts of Sin Eating and Scapegoating to draw sin into oneself. 
[*]Sin Devouring: An internal hell that can purify sin and use it as nothing more than fuel. An energy source that compensates for her lack of circuits. Can be used infinitely, but if she attempts to devour something of a higher order than she can handle, it will lead to indigestion… Or death. 
[*]Beast Magecraft (Limb): Encasing one’s limbs in an aura of magical energy that mimics a Chimera. When used on individual limbs, it works as an enormous boost of strength and speed, far exceeding self-reinforcement. Useable 10 times per singularity. 
[/list]

[center][b]Major Magecraft[/b][/center]
[b][i][/i][/b][list][*]Goat’s Flame: The flame breath of the goat head of the chimera. Using the internal hell as fuel and letting forth a blast of hellfire. Useable 5 times per singularity. 
[*]Snake’s Venom: An attack, striking from a tail with a snake’s head. Biting with powerful venom that melts away flesh. Useable 5 times per singularity. 
[*]Lion’s Skin: The use of beast magecraft to mimic the skin of the lion. A symbol of protection that rejects civilisation. Useable 5 times per singularity. 
[/list]

[center][b]Primary Mystic Code[/b][/center]
[center][b][i]Mystic Eye Killer: Golgotha’s Ruin[/i][/b][/center]

A mystical eyepatch used to cover her Mystic Eye of Perdition. Though she doesn't truly understand the nature of her eye, and has no memories of using it, it's something she believes in, even if she can't really understand it. As a result, she heaps her own stories upon it, giving it whatever name or ability seems 'cool' at the time.

In truth, it's a single mystic eye that was one of a pair belonging to one of the three people who became one, mutated in the process. A mystic eye of Regression, mutated so that it can only turn inwards. Turning backwards, from man to beast. It's something that aligns well with her Magecraft, empowering it to use her Beast Magecraft across her whole body. However, it also greatly effects her mind, as she becomes something more akin to a beast. Though normally, someone in that situation would simply run out of energy and collapse, her internal sin engine means she could go feral and cause havoc for quite some time... Thankfully, that hasn't happened yet. Her dreadful eye of Perdition is not a tool to be unleashed lightly, after all. 

[center][b]Non-Magecraft Abilities/Items[/b][/center]
[b][i][/i][/b][list][*]Pankration Antistrofi: Pankration, the martial art created by Heracles and Theseus to fight Phantasmal creatures toe to toe. A theoretical reverse; a technique usable by beasts to elevate themselves against heroes… but it isn’t very developed. In its current state, it’s a functional martial art, at the very least. 
[/list][/hider]