02 Powers & Abilities

As the core and lord of Dark Matter, 02 exists in a league of his own power-wise and requires a separate article to properly detail everything he's capable of. As the very concept of Dark Matter personified, 02 is truly and undeniably omnipresent, nothing less than an integral feature of reality (and in fact makes up a vast majority of the universe).
As such, he holds all the standard Dark Matter abilities in addition to his own unique powers, but on an incomprehensible scale.
Possession
Explained in detail here. 02 can possess things like all Dark Matter can, however he is so overwhelmingly powerful that anyone possessed by him is killed instantly and their body permanently mangled beyond recognition. There are no known instances of 02 personally possessing someone.
Darkness
The broadest category of 02's abilities, and therefore the hardest to describe. As the god of darkness, 02 has total control over the concept and can do practically anything with it, limited only by his imagination and how much effort he's willing to expend. He can bring total darkness to areas otherwise flooded with light, he can make darkness solid and attack things with it, he can remove darkness from an area, he can infest things and people with darkness until they're nothing more than darkness themselves... basically, if you can imagine a darkness-based power, he can do it. This is to be considered the basic framework of 02's power and the method by which many of his other abilities work.
Gravity
02 is also the god of gravity. As Dark Matter incarnate, he can exert literal reality-bending levels of gravity. 02's body is in actuality a black hole of brain-breaking scale. If he didn't consciously take on a form that was practical to interact with the universe with - by limiting both his size and gravitational output - he'd be a monster on the order of TON 618 or grander.
His halo is his accretion disc and is exceedingly dangerous for light-element creatures to touch because of this. It gives magical burns on contact. On the flipside of this, due to the nature of how light and dark magic interact, the halo can also be considered the most vulnerable part of 02's body. His halo serves as both a glaring weak point and a visual indicator for his health. As it shifts through colours towards red, it gives off less and less energy and becomes far safer to touch. Once the halo hits red, it is in a critical state and any further damage will cause it to shatter, which deals immense injury and agony to 02.
As an extension of this power, 02 can selectively apply much higher gravity to physical blows in order to amplify his strength. He could also, conversely, reduce the gravity on heavy objects in order to move them more easily. He almost never does this because he doesn't fight hand-to-hand.
02 can create small localised explosions to attack with; this is done by making gravity rapidly expand or fluctuate around a single point. This is among the rarest of his combat moves - he simply doesn't use it much.
Hæmomancy
02 also has a sharp skill for blood magic, specifically the manipulation of his own blood (though he can still manipulate the blood of others).
02's blood is a potent auto-immune toxin that is deeply poisonous to most organic beings. It is also slightly caustic, though this effect is quite weak and is generally able to be blocked by barriers as simple as clothing.
02 uses his blood as one of his primary weapons in combat. He is always bleeding to some degree, varying according to his emotional state; his missing eye constantly weeps and his good eye frequently bleeds too. In extreme duress, he bleeds from his mouth as well, but these are all involuntary. 02 can open slashes on any part of his body and pull his blood out to attack with; this is done either by simply launching the blood at his opponent, or he can solidify the blood into weapons. His most common choice is long blades protruding from his arms.