Essence of theSacred Gear (Vritra Gears)

You gain a Sacred Gear, specifically, you gain the collection of Sacred Gears known to house the soul of the Evil Black Dragon King Vritra, the Curse Dragon, the Prison Dragon. Their direct power might not compare to that of the Heavenly Dragons, but their sheer versatility (and ability to survive like a cockroach) was utterly unmatched.

As a Sacred Gear wielder, you can store and recall these items from your soul, where they are bound to you. But as one that drank an Essence, your Sacred Gears have some special properties. For one, your Sacred Gear is immune to removal, and cannot be separated from you. Additionally, you are immune to Sacred Gear-targeting effects, such as a 'Sacred Gear Canceller', nothing can stop you from actually calling and using your Sacred Gear.

This collection consists of four primary powers:

'Absorption Line': This Sacred Gear takes the form of a small lizard-shaped bracer. This grants you the ability to create lines of connections that allow the user to absorb or transfer power between opponents, allies, or even objects. This can even transfer life energy and convert it to demonic power, magical energy, or similar, it can even exsanguinate a person.

'Blaze Black Flare': This Sacred Gear doesn't have a truly set form, rather taking the form of Black Flames that the user can summon and control at-will. These intense jet-black flames are infused with the concept of 'curses', and can even curse the soul itself. The User is immune to their effects, and is even further immune to Curses in general. The cursed nature of these flames can counter divine, holy, or even infernal attributes (At least temporarily, if the enemy wielder is significantly stronger than you).

'Delete Field': This Sacred Gear doesn't have a truly set form, but instead allows the user to suppress and negate the abilities and powers of opponents or items within their range. The effects of which are powerful enough to even temporarily stop divine beings.

'Shadow Prison': This Sacred Gear replaces your Shadow, and allows the user to generate and manipulate shadows. However, the true power of this Sacred Gear is it's ability to bind, restrain, and contain things. Things you bind with this will find it unnaturally hard, or even impossible, to break free.

Each of these Sacred Gears are powerful, but their abilities truly shine when used at the same time, which you find easy to do. You can also manifest the Sacred Gear in the form of a single piece of jet-black/purple armor, such as a gauntlet with a draconic/lizard-like design.

In addition to their natural abilities, as a wielder of all pieces of Vritra, you also gain access to two other powerful abilities: 'Vritra Promotion' and 'Malebolge Vritra Promotion'. 'Vritra Promotion' allows the user to take the form of a Black Dragon and empower all the abilities of the Sacred Gears, though with the drawback of raising the impact of their instincts, which can cause unprepared and unskilled users to go berserk (Though as they are instincts, they won't harm people/places they truly care for, but they will be more likely to engage in collateral damage). 'Malebolge Vritra Promotion' takes the form of a set of Jet-Black and Purple armor that boosts all abilities even further, while allowing Vritra and the user to fuse their wills. This also allows the user to temporarily summon Vritra and fight alongside them, albeit with Vritra's temporary body being comprised entirely of their cursed black fire. The increase in abilities boosts them to the point that the fire will curse someone to death if they approach carelessly.

As a Dragon-type Sacred Gear, you give off an aura of attractiveness/appeal/power to others, which has the side-effect of making you far more appealing of a partner to those you find attractive.

Optionally, instead of the Vritra from DxD canon, you can choose for it to be another version of Vritra you know of, or even a fully unique version altered to your tastes. Regardless of your choice, you will find yourself getting along incredibly well with the Vritra within your gear, and they will never act to betray or or anything like that. You will find yourselves easily becoming incredibly close, incredibly quickly, and that closeness will be the sort that can withstand anything. Additionally, the Vritra in your Sacred Gear is practically a cockroach in terms of being difficult to kill and pin down, and is willing to teach you their shameless ways of surviving damn near anything.

As Vritra is an Evil Dragon that managed to not only survive Hindu myth, but also had to be cut up into so many pieces just to pin them down, this experience is considerably effective.

Yes, this does mean you can have a Waifu Vritra of your own design as your version.

Optionally, if you are inserted into Highschool DxD, your version of Vritra will overwrite the history of the 'canon' version, and your Sacred Gears will replace the canon ones.