The Twins.

Shaula: [AG] HP: 1,000,000/0. Infernal Meniscus III. Searing IIII. Aeonic Infinity IIIII.
Lesath: [PG] HP: 0/1,000,000. Tainted Optics III. Bitter IIII. Eternal Moment IIIII.

Infernal Meniscus: Shaula lights the eyes of an entity ablaze, inflicting it with either the Burned debuff, or the Blinded Debuff.
Tainted Optics: Lesath transmutes the vitreous humor of an entity into a corrupted mass of tainted fluid. Inflicts entity with Acheronian Albinism for three turns.
Searing: Shaula momentarily warps two entities into the core of a type 1AX supernova, inflicting them with Solar Myopia for two turns.
Bitter: Lesath infuses the bodies of two entities with the heart of corruption, extracted from sources such as Demon Altars and Tainted nodes. The entities are immediately assigned a debuff each. One entity is inflicted with the Harbinger effect, lasting three turns. When an entity with the Harbinger debuff attacks another entity, said entity is inflicted with the Harbinger debuff for three turns, as well as two turns of Ashen, the second debuff, which is granted to the second entity in question as well. Ashen deals 25,000 damage per turn, and corrupts attacks used by the entity, applying a small weakness to them, decreasing their effect. Shaula and Lesath are immune to Harbinger and Ashen. If an entity is inflicted with Harbinger twice, they are scarred with the Pyrope Syndrome.
Aeonic Infinity: Shaula saps the fabric of a number of doomed timelines from existence, utilizing their potent time energies in a singular, focused attack on a singular entity. The entity is bombarded with the full force of all damage that they have and shall ever take at once. This searing sensation immediately curses the entity forevermore with the status debuff known as the Pyrope Syndrome. The effect entirely blinds the entity for the remainder of the duration of its lifespan. Any orders given to the entity have essentially no effect. The entity will attack an entity on the same sides as the one targeted. If the entity is not commanded that turn, it attacks an entity that shares its alignment.
Eternal Moment: Lesath taps into the essence of infinity, and momentarily removes the concept of time from existence, factoring its potency into change. Three targeted entities take major damage, and are inflicted with the Abyssal Inferno debuff for three turns. It afflicts two other random entities with minor damage and two-turn Abyssal Infernal debuff.

Thanatos: As near-opposites, Shaula and Lesath are endowed with balancing factors against their functions. Shaula exists without a maximum health, and cannot be healed. Lesath, on the other hand, is entirely without the concept of dying instantly, and must be healed up to full health before it can be slain. Both can only be slain by the fires of ukhyoiikhu.

The Duel: Shaula and Lesath are bound to each other intrinsically. The essence of the two collective beings fuses together when both are finally slain, emitting shockwaves of elder energies. The potency amalgamates into two forms of stable liquid magetear coating crystalline lenses that have fused together, which are cast out of the supernova in the form of the Mustaqbal Lens and the Alhali Glass. The former is given to the player whom most damaged Shaula, and the latter Lesath. The core is a veritable smorgasbord of summoning energies. A permanent tear into the fabric of reality, ready for the calibration. A Breach, if you will. Hah.

[II] Mustaqbal Lens: READY TO USE. Wearer: ???

A perfectly uniform oval of indestructible glass, fifty-two millimeters in width down the long axes, covered in a thin coating of red magetear. Formed in The Breach's creation. Upon use, it draws energy from The Breach, the nearest source of power from the Inky Abyss, inflicting a random entity in a chosen alignment with the Pyrope Syndrome, along with a companion 25,000 damage.

[II] Alhali Glass: READY TO USE. Wearer: ???

A perfectly uniform oval of indestructible glass, fifty-two millimeters in width down the long axes, coated in a thin covering of blue magetear. Formed in The Breach's creation. Upon use, it channels energy from The Breach, the nearest source of power from the Inky Abyss, inflicting the Harbinger debuff upon a chosen entity. Must be used on an entity with an alignment matching that of the user.