Nephilim are the captains of Heaven's legions, leading angels into the fray when called upon to battle. They follow their orders faithfully, committing any act in the name of heaven, particularly the destruction of the "vermin" that inhabit the Sage Realm.
Powers and Stats
Tier: Likely 6-B, likely higher via a suicide attack
Name: The Nephilim
Origin: The God of High School
Age: Thousands of years old
Powers and Abilities: Superhuman Physical Characteristics, Enhanced Senses, Flight, Telekinesis, Forcefield Creation, Telepathy, Regeneration (Low-Mid), Energy Blasts, and can summon angels to fight for them
Attack Potency: Likely Country level+ (The power of a single weak Nephilim is superior to that of a member of The Six like Jun Jae-San, who can summon showers of giant city block sized meteors and create nukes capable of wiping out a country, albeit while the Seal on humanity was in place), likely higher via a suicide attack (The King thought that the suicide explosion of three Nephilim was enough to incapacitate Jin Mo-Ri.)
Speed: Massively Hypersonic combat speed with Massively FTL travel speed (Shown to be capable of crossing interplanetary distances and Han Dae-Wi and Yu Mi-Ra have been shown to be able to keep up with them in combat)
Lifting Strength: Unknown
Striking Strength: Likely Country Class+
Durability: Country level (An artificial, weaker Nephilim tanked the impact of a dozen city block sized meteors as well as the concentrated explosion of a nuke capable of wiping out the Korean Peninsula, which was later enhanced by magic)
Stamina: High, can fight while under assault from dozens of Sage Realm denizens at once and do not flinch when they lose limbs.
Range: Several hundred meters on the basis of their sheer size
Standard Equipment: Can summon swords that dwarf mountains.
Intelligence: Nephilim do not appear to have much personality, but are skilled enough fighters to hold off dozens of denizens of the Sage Realm at once and followed basic orders from the Crown Princes faithfully.