An acquired set of eyes, granted via ethernano-alchemy surgery, these grant Grae enhanced vision naturally, seeing far, in the dark, and even in slow-motion down to a subatomic fineness. Always active, but the boy can choose to perceive those details rather than simply let them pass. They also grant the boy resistance to illusions as well as perception over the flow of Ether.

Ignoring C-class illusions entirely, reversing B-rank back at its user with minimal choice, while A and S-class illusions are possible, albeit with great focus required.

These are the Sterlings' pride and joy, the prize the boy took as his with his dominion over his generation.

For many Holders, one would tend to rely on a brief of requips to cover all angles and many counters. Inevitable, as due to the nature of their magic, it would normally require one to find and acquire those tools to do so.

The exception is for those with access to alchemy and, more importantly, the background to forge their own path.

Overskelter is one of the Sterlings' magnum opus, a Cursed Tool potent not in its nature or by how much power it can summon, but in how it's able to take it. Made to take in other Cursed Tools, the weapon has gained many tools sealed within it over his youth and was the main key to how he established such early tyranny over his family.

For most mages, basic elemental spells are something akin to uniforms. Loose-fitted for anyone to wear, but soon enough leave behind once one has grown and adapted to their own style, bending the greater ether within to fit their magic around them once they've established their roles.

However, there is an occasion where one must rely on those basics: When one is operating on themselves as a patient.

Cursed Series: Sin Inversion is a simple spell that relies on fundamental Emotional Magic theorums to convert Ethernano in one's body into Cursia. While that is normally doable without a spell, it typically requires one to reach an extreme in negative emotions to do so, an act that only demons, dark wizards, and exceptions of exceptions can do, as even a hotheaded wizard would find it difficult to reach a level of rage needed without extreme circumstances to push them.

Sin Inversion is intended to bypass the necessary instability and instead catalyze a surge of emotion well past safe boundaries to cascade, turning its user into effectively a dark wizard at the peak of their emotions. It doesn't grant any boost in power inherently, but no wizard would underestimate a dark wizard on a rampage.

Within Sin Inversion, however, there are certain caveats in place that hold it back, as there would be little point in converting oneself into a dark wizard with no means of restraint, let alone making it permanent. Those being tied to the Sins that are focused upon work as both directing the wizard's madness as well as criteria that both restrain and contain said madness.

The Sins can be divided into two categories: those that must not be distracted, and those that must not be sated. Why the differentiation is simple: the latter are those most known to spiral and make the inversion permanent, while the former is most known to burn the user out if they lose their focus. But so long as their focus remains firm, the red eyes of a Sterling stained with Cursia are to be feared by all on the battlefield.

Fury - Simplest of emotions, this requires one to focus its fury towards a target, never letting its flames surge towards those unrelated, lest it be snuffed out. Easiest to manifest and strongest flame due to anger's nature of burning other emotions as fuel.

And that fire will burn the enemy down, as this is the greatest offensive option he has in great volume of Ether turned Cursia to press the aggression with little stopping them.

Vexing - The desire of one's idol, Vexing used to be a difficult emotion to handle until one realization came to light: It must not reach for said idol. Every attempt to alter the external inevitably either cascades into rampant inferiority or ruins the illusion it manifests. For it to remain stable, it must keep its ideals internal and aim to realize them instead.

In that line, it grants Grae a level of awareness in combination with his eyes to mimic the flow of a chosen image. It won't grant him their abilities or tools, but in terms of learning from another, this is the best mode to engage and is one he uses often in his dreams.

Bum - Desire to be unchanging. Steady and murky, one might think it the simplest to utilize, but those fools would find themselves comatose as it spirals into laziness. No, one must never let their guard down with it, never lax, but unchanging all the same. For Grae, this is his strongest affinity, and so he cannot ever use it.

In return for its slow nature, it is the greatest defensive option he has in the form of a small pool of ethernano that is effectively endless, which makes attacking nearly impossible, but defense unbreakable.

Lust - A desire to no longer need. Lust is endlessly ravenous; thus, it is most important to starve the user if they wish to use it properly. Keep their bite one step away and let them tear their morsel to shreds before they feast.

For Lust, always recognize the softest place to gnaw into.
Delusion - The want of something is a simple sin, but one most known to spiral as Lust can. Delusion must not be spoken; they must always be moving, always busy. Otherwise, it will begin to raise its head and desire even the stars.

Control that need to claim well, and it will guide its user to what will aid them.
Sodomy - Do not mistake this for simple carnal want. Sodomy is similar to Lust, but where Lust wants what is physically there, Sodomy wants to taint the unseen. Power, violence, the romance of another, Sodomy is always wanting something invisible, and because of that, it is impossible to check its spiral.

Instead, one must check it at its collapse/climax. Do not let it finish; never let it reach that final act. Edge the line as fine as you must, and one will find an endless spring of cursia at their hands, refueling rapidly to spend in wild fervor towards the enemy.

Ego - Placed last, not because it is exceptional, but because it is the exception. Not a desire but an existence of superiority. Power granted by believing oneself to be powerful, Pride is a mighty glass castle, as doubt can cause a crack to shatter it in one swoop. Many try to use it, but few can have absolute faith in their ability, and even fewer can take pride in restraining said ability.

But for those few, all of them hold the greatest ability possible: Pure dominance. Authority above all others, Priority beyond claim, Ego grants Grae the capability to take what he wishes and forces all to focus on him.

It is the mark of a true tyrant to use it properly, a feat that Grae managed in his youth to lay claim over Overskelter.