Tartarus (Riordan Novels)

Tartarus is the Greek primordial god of the abyss. Tartarus is also the name of the deepest, darkest pit in the Underworld.

Powers
Supreme Power: As the primordial god of the abyss, Tartarus proved to be one of the most powerful and terrible entities in the universe and infinitely powerful while in his domain. He rivals Gaea and Ouranos in power. Proof of his terrifying power was that even the Titans could not threaten him, since he easily defeated Krios, Hyperion, and Iapetus without much difficulty. Even after the arrival of Damasen, the maximum that he did was to distract Tartarus so that Percy and Annabeth could escape since there was no way to defeat him. Even so, Tartarus overpowered all of his opponents within moments even though he was only using a small manifestation of his power. According to Annabeth, if Tartarus wanted to, he could kill them all with a single thought if it were not his desire to kill his victims one at a time.

Massive Strength: Tartarus has incredible physical strength far surpassing that of even a giant or Titan. He was easily able to overwhelm Iapetus and destroy his spear, as well as easily defeat Damasen, Iapetus, Small Bob, and the Drakon all at one, though the Titan and giant were both at a fraction of their full power.

Dark Gravity: Tartarus also has a sort of dark gravitational field around him which pulls everything in proximity to him into his terrifying whirlpool of a face.

Essence Absorption: Tartarus has the ability to suck beings into the swirling whirlpool of darkness on his face, which he did to the immortal essence of Hyperion and Krios. In that sense, Tartarus can technically kill gods, Titans, and giants by absorbing their immortal essence into his armor for lengthy periods of time.

Monster Lordship: As the primordial god of the abyss, Tartarus has absolute control and divine authority over monsters.

Umbrakinesis: As the primordial god of the abyss and the pit of evil, Tartarus has absolute control and divine authority over darkness, although not so much as Nyx and Erebos.

Power Suppression: Just by being in his domain, Annabeth's innate capacity to heal slowed to a near halt, forcing her to drink from the River of Fire.

Amortality: As a primordial deity, Tartarus is not technically alive. As such, Tartarus is unable to die.

Manifestation: Like many other primordial deities, it is assumed that Tartarus can manifest in a physical form to interact with gods and mortals.