Origins: Nanatsu no Taizai
Alias/Aka(also known as): Member of The 10 Commandments- "Piety"
Classification: Demon
Threat level: Dragon || Dragon, at least Dragon with Ominous Nebula and God
Age: 252
Gender: Male
Powers and abilities: Superhuman Physical Characteristics, Flight, Enhanced Senses, Fire Manipulation, Longevity, Weapon Mastery, Martial Arts, Soul Manipulation, Regeneration (Mid) , Mind Manipulation (Those who turn their backs on him physically fall under his commandment), Sealing (Sealed the entire Vampire Clan) , Power Nullification (Having his father's ability he can seal any magic attack, he managed to seal Dolor's magic and Ludociel's attack, can negate regeneration), Telepathy (Could contact the commandments throughout Britania), Darkness Manipulation, Creation (Able to create weapons, shields and wings by manipulating the dark flames), Statistics Amplification (Demons's strength increases at night), Resistance to Soul Manipulation (Tanked an off guard blast from Ludociel)
Physical strength: Island level (Stronger than Critical Over Galand, cut off Unsealed Demon Meliodas's arm) || Large Island level (His 2nd Demon Mark amplifies his power, blocked The One Escanor's attack with his sword)
Attack Potency: Island (Has the highest power level out of The Commandments, managed to badly injure Merlin), at least Island+ with God (Comparable to Ludociel, managed to injure him), higher with Ominous Nebula (Effortlessly beat Ludociel and Near-Noon Escanor) || Large Island (The 2nd stage multiplied his power, Ludociel and Near-noon Escanorcouldn't break through his Ominous Nebula), Country with God (Kept up with Afternoon Mael, however it was due to an emotional boost), at least Country with Ominous Nebula (Almost blocked The One Escanor's attack, completely blocked his axe swing, destroyed The Demon KingMeliodas's Hermit of Moments)
Durability: Island (Tanked an attack from Pre-revival Meliodas with no damage), at least Small Island with God (Took an off-guard attack from Ludociel) || Large Island, up to Country with God (Fought Afternoon Mael)
Speed: Massively Hypersonic+ (Blitzed Meliodas), at least Massively Hypersonic+ with God (Kept up with Ludociel), higher with Ominous Nebula (His Omnius Nebula was faster than Ruedociel and Near-Noon Escanor, because of it's speed it looks invisible even to them) || At least Massively Hypersonic+, higher with God, higher with Ominous Nebula (Omnius Nebula was faster than Merlin's teleportation and Ludociel's Flash)
Intelligence: Above average.
Stamina: High.
Weaknesses: He can get affected by his own commandment. Can't regenerate the damage he takes but can heal his injuries, if a demon takes too much damage it can't regenerate. A demon dies if all his hearts are destroyed.
Standard equipment: A sword
Noteworthy techniques and abilities
Commandment "Piety": Bestowed to him by the Demon King, whoever turns his back (physically) on Zeldoris allows him total control over their minds.
Demon Form: Accessing this mode gives him a boost in speed, durability, power and other abilities.
- Black flames: In his demon form he is covered by dark "matter" that moves according to the will of the user. It can act on his own protecting the user from attacks and he can use this to create giant claws and wings.
- Self-Healing: Using the black flames he can cover his wounds healing them in the process, can also stitch a severed arm or another body part.
- Flight: The black flames take the form of wings allowing him to fly.
- Weapons creation: Manipulating the black flames allows him to create weapons such as axes or giant claws. The weapons created by this have devastating power.
- Soul manipulation: Like every demon he gets the ability to remove souls by touching the target. He can recover his strength by eating the souls.
- Hell Blaze: An ability essential to the demon clan. The user covers his weapon into black flames, increasing it's cutting over and is able to nullify regeneration. It was able to negate Ban regeneration.
Dies Irae: Zeldris summons a portal over his desired target, and releases a massive lightning bolt to strike them down.
Hellblaze: A mysterious ability possessed by Zeldris that allows him to generate black flames.[41] It also has the additional effect of nullifying an immortal's regeneration.
God: According to Zeldris, the Demon King lent a portion of his magic power to him for him to use. When using his father's power, Zeldris is able to completely nullify all magical attacks.
Ominous Nebula: Zeldris' innate power. His power creates a vortex that surrounds and attracts all living beings around him that are sliced at a god-like speed by pure reflexes when anyone comes in contact.
Keys: Base || 2nd Demon mark